Acides benzoïques

<p>2-Nitrobenzoic acid is a diagnostic chemical that has been used for the detection of epidermal growth factor. It also has therapeutic properties, and has been used to treat infectious diseases and autoimmune diseases. 2-Nitrobenzoic acid is an organic compound that contains two nitro groups, which are connected to a benzene ring by two carbon chains. The molecule also contains two aldehyde groups, which are connected to the benzene ring by one carbon chain each. 2-Nitrobenzoic acid is a white crystalline solid with a melting point of 118°C and boiling point of 310°C. It is soluble in water and alcohols, but insoluble in ethers or chloroform.<br>2-Nitrobenzoic acid can be synthesized from nitric acid and benzoic acid. This reaction produces enough heat to ignite the mixture if it's not cooled down first.</p>

<p>5-Amino-2-nitrobenzoic acid is a useful chemical building block that is used in the synthesis of complex compounds and useful scaffolds.</p>

<p>5-Amino-2-nitrobenzoic acid is an organic compound that belongs to the class of versatile building block. It is a white solid that has been used as a research chemical, reagent, and specialty chemical for the synthesis of complex compounds and pharmaceuticals. 5-Amino-2-nitrobenzoic acid is also known as 2-amino-5-chlorobenzoic acid (ACBA). It is soluble in water, but insoluble in ethanol. The CAS number for this chemical is 13280-60-9.</p>

<p>Methyl 4-aminobenzoate is a chemical compound that is used as a fluorescence probe in the study of DNA replication. It can be used to detect the presence of viral RNA in cell culture, and has been shown to inhibit the replication of bacterial RNA. Methyl 4-aminobenzoate binds to guanine residues in DNA and forms an alkyl bond with them. This prevents the binding of other amino acids, which are essential for DNA replication. Methyl 4-aminobenzoate has also been shown to have pharmacokinetic properties that make it useful for intravenous administration and oral administration.</p>

<p>Dietary polyphenol</p>

<p>2-Amino-4-methoxy-benzoic acid methyl ester is a high quality, versatile building block for the synthesis of complex compounds. It is an intermediate in the synthesis of a number of biologically active compounds and has been used as a reagent for the determination of amino acids. 2-Amino-4-methoxy-benzoic acid methyl ester is soluble in water and polar organic solvents.</p>

<p>2,4,6-Trihydroxybenzoic acid methyl ester is a synthetic compound that has been used in animal studies to investigate the inflammatory effects of substances. It has been shown to have anti-inflammatory properties in vitro and in vivo. Furthermore, 2,4,6-Trihydroxybenzoic acid methyl ester has been shown to inhibit the production of tumour necrosis factor-α (TNF-α) and other cytokines. This drug also has anti-fungal activity against Candida albicans and Aspergillus fumigatus. 2,4,6-Trihydroxybenzoic acid methyl ester is biodegradable.</p>

<p>5-Methoxy-2-nitrobenzoic acid is a compound that has been shown to have antiinflammatory properties. It has been found to inhibit the production of inflammatory mediators such as leukotrienes and prostaglandins. 5-Methoxy-2-nitrobenzoic acid also inhibits certain enzymes, such as cyclooxygenase and lipoxygenase, which are involved in the biosynthesis of these mediators. 5-Methoxy-2-nitrobenzoic acid may be useful in the treatment of inflammatory diseases such as arthritis or asthma. This drug can also be used for chemoprevention against cancer. The drug has been shown to inhibit the growth of tumor cells in vivo by oral administration. This is due to its ability to inhibit DNA synthesis and protein synthesis in cells by binding with DNA and inhibiting RNA synthesis through inhibition of ribonucleotide reductase.</p>

<p>2,5-Difluoro-3-methylbenzoic acid methyl ester is a high quality, complex compound that can be used as a versatile building block in synthesis. It acts as a reagent and can be used as a research chemical. 2,5-Difluoro-3-methylbenzoic acid methyl ester is an intermediate in the production of other chemicals and can also be used as a reaction component or useful scaffold.</p>

<p>3,4-Dimethoxybenzoic acid anhydride is a synthetic compound that can be used for the synthesis of other natural products. It has been shown to inhibit the demethylation of flavones and to activate the mitogen-activated protein kinase (MAPK) pathway in cells. 3,4-Dimethoxybenzoic acid anhydride has also been shown to have anti-inflammatory effects by inhibiting prostaglandin synthesis.</p>

<p>4,4'-Dibenzoic acid is a chemical compound that has been used as a precursor to other compounds. It is also used in the production of polycarbonates and epoxy resins. 4,4'-Dibenzoic acid has low energy, which means it can be transported more easily than high energy molecules. This property makes it an excellent candidate for use as an enhancement agent for organometallic catalysts such as biphenyl. The structure of 4,4'-dibenzoic acid consists of two benzene rings connected by an ethylene chain. This molecule has one hydrogen bond on each side of the molecule. The 4-hydroxyl group on the left side of the molecule is susceptible to oxidation and can act as an oxidation catalyst when exposed to heat or radiation.</p>

<p>Methyl 4-bromo-2-methoxybenzoate is a drug molecule that belongs to the amide class. It is a synthetic reagent and can be used as a potential precursor in the synthesis of other drugs. Methyl 4-bromo-2-methoxybenzoate has been shown to react with carboxylic acids to form methyl esters, which are functional groups that contain a carboxyl group (COOH) and an alcohol group (OH). This reaction is called methoxylation. The transformation of methyl 4-bromo-2-methoxybenzoate into methyl esters increases the solubility of the compound and allows for it to be transported in water.</p>

<p>n-Pentyl 4-hydroxybenzoate is a preservative that inhibits the growth of microorganisms. It is used in products such as cosmetics, pharmaceuticals, and food to prevent spoilage. The antimicrobial activity of n-pentyl 4-hydroxybenzoate has been shown to be due to p-hydroxybenzoic acid, which binds to bacterial cell walls. This binding prevents the formation of an antibiotic-inhibitor complex with the enzyme cell wall synthesis that is required for cell wall biosynthesis, inhibiting protein synthesis and cell division. n-Pentyl 4-hydroxybenzoate has also been shown to inhibit bacterial growth in vitro and in vivo in rats by interfering with protein synthesis in rat liver microsomes.</p>

<p>3-Dimethylaminobenzoic acid is a bacterial enzyme that belongs to the group of p2 carboxylates. It is a non-specific esterase that has been shown to hydrolyze 3-ethylbenzthiazoline-6-sulfonic acid, which is an indicator of root formation. The enzyme activity of 3-dimethylaminobenzoic acid has been demonstrated in kinetic data and redox potential measurements. 3DMBB is found in plants and can be used for the determination of dry weight, as it can hydrolyze triticum aestivum urine samples or cholesterol esters. This enzyme also has catalase activity and can be used in the determination of catalase activity in biological fluids such as urine samples or blood serum.</p>

<p>2-Amino-5-iodobenzoic acid (5-AIBA) is a chemical compound with a molecular weight of 152.14 g/mol. It belongs to the group of anthranilic compounds, and has antiinflammatory activity. 5-AIBA also inhibits cancer cell proliferation in vitro and in vivo by inhibiting the synthesis of DNA, RNA, and proteins. The reaction solution for the palladium-catalyzed coupling of 5-AIBA with 2-(N,N′-dimethylcarbamoyl)phenyl boronic acid was found to be stable at room temperature for 24 hours. The inhibitory activity of 5-AIBA against MCL1 protein was potent, as it inhibited MCL1 protein expression by 90%. Molecular modeling studies showed that 5-AIBA binds to the amide region on the ATP binding site in MCL1 protein (mcf7). Carbonyl groups are present on both sides of the am</p>

<p>Ethyl 3-aminobenzoate is a chemical that is used as an anesthetic. It is administered intravenously and has been shown to have effects on the cardiovascular system, such as lowering blood pressure, decreasing heart rate and increasing the time it takes for the heart to recover after a contraction. Ethyl 3-aminobenzoate also affects the central nervous system by causing anesthesia and changes in brain function. Its effects are reversible with administration of naloxone or flumazenil.</p>

<p>4,5-Dimethoxy-2-nitrobenzoic acid (DMNB) is a nitrophenol compound that is used as an intermediate in the synthesis of pesticides. DMNB inhibits the growth of bacteria through its ability to inhibit protein synthesis and DNA replication. The inhibition is due to DMNB’s ability to covalently bind to nucleophilic sites on enzymes that are essential for these processes. It has been shown that DMNB can be degraded by microorganisms, such as bacteria, fungi, and algae. The biodegradation process may be facilitated by its solubility in water and its low molecular weight.</p>

<p>4-Hydroxybenzoic acid sodium salt (4HBA) is a drug that is used in the treatment of bowel disease. It is an antimicrobial agent that has been shown to have activity against Gram-positive and Gram-negative bacteria, including Pseudomonas aeruginosa. 4HBA has also been shown to be effective in the treatment of ulcerative colitis and Crohn's disease by reducing the production of inflammatory cytokines. The mechanism of action for 4HBA is not fully understood, but it may be due to its ability to interfere with protein synthesis in bacteria, as well as inhibit antibody responses in humans. The structural biology studies on this compound have revealed that the α subunit can bind to the β subunit, which could affect its activity.</p>

<p>Ethyl 4-ethoxybenzoate is an antimicrobial agent that inhibits bacterial growth by interfering with the synthesis of DNA. It also has a genotoxic potential and can induce mutations in cells. Ethyl 4-ethoxybenzoate is used as an impurity in pharmaceutical drug production, such as solanum tuberosum extract, to prevent microbial contamination. It also has been shown to inhibit the growth of bacteria in cell cultures by binding to DNA and inhibiting DNA replication. Ethyl 4-ethoxybenzoate is used as a control agent for the detection of antibiotics in natural products, such as ethanol extracts from plants.</p>

<p>Ethyl 2-nitrobenzoate is a cyclic organic compound that contains a nitro group, which is an organic radical with the formula -NO2. It belongs to the class of amides and has two carbonyl groups. The molecule consists of a bicyclic heterocycle consisting of one ring with five carbon atoms and one ring with six carbon atoms. Ethyl 2-nitrobenzoate can be used in the treatment of muscle diseases, metabolic disorders, growth factor deficiencies, autoimmune diseases, and neural system disorders due to its ability to act as an antihypertensive agent and as an inhibitor of angiotensin converting enzyme (ACE). This molecule's hydroxyl group can also react with epidermal growth factor (EGF) to form N-hydroxyethyl EGF (NHE). This product has been shown to have antiviral properties against HIV-1 protease inhibitors by interfering with viral protein synthesis.</p>

<p>3-Hydroxy-2,4,6-triiodobenzoic acid (3HITBA) is a molecule that is found in the urine of patients with chronic kidney disease. It is present in group P2 of the periodic table. 3HITBA has been demonstrated to have anti-inflammatory properties and may be useful for the treatment of inflammatory diseases. 3HITBA has been shown to inhibit cancer cell growth by inhibiting DNA synthesis and protein synthesis. This molecule also has fluorescence properties and can be used to detect biological fluids such as blood or urine. The structural analysis of this molecule reveals that it contains intramolecular hydrogen bonds, which are important for its stability and activity.</p>

<p>3-Acetoxybenzoic acid is a metabolite of 3-hydroxybenzoic acid, which is an intermediate in the biosynthesis of salicylic acid. It has been shown to have antibacterial properties and may be used as a topical treatment for skin infections caused by staphylococcus. 3-Acetoxybenzoic acid also has antiviral properties, which may be related to its ability to bind histone H3. 3-Acetoxybenzoic acid inhibits leishmania infantum growth and development by binding to chloride ions and preventing the formation of hydrogen bonds in the cell membrane. This prevents chloride ions from entering the cell and causes water channels to close, leading to dehydration and death.</p>

<p>4-Toluic acid is a chemical compound with the molecular formula CH3C6H2O2. It is a white solid that is soluble in water and alcohol. 4-Toluic acid can be produced by oxidation of benzoate, which is a reaction catalyzed by light or by using a catalyst such as trifluoroacetic acid. The reaction mechanism begins with the formation of the intramolecular hydrogen and subsequent oxidation to form an organic radical. This organic radical then reacts with oxygen to produce 4-toluic acid. 4-Toluic acid has been shown to have biochemical properties such as enzyme inhibition, DNA cleavage, and protein denaturation. The coordination geometry for this molecule is octahedral, and its redox potentials are -0.27 V (in acidic solution) and -1.06 V (in alkaline solution).</p>

<p>Component in some dental cements</p>

<p>2,5-Dihydroxybenzoic acid is a natural compound that has been shown to inhibit the matrix metalloproteinase enzyme activity of α1-acid glycoprotein. The 2,5-dihydroxybenzoic acid structure is similar to p-hydroxybenzoic acid and gentisic acid. It is also an inhibitor of xanthine oxidase and caffeic acid oxidase. 2,5-Dihydroxybenzoic acid has a number of potential uses in analytical chemistry as it can be used to measure the concentrations of caffeic acids and other related compounds in biological samples.</p>

<p>3,5,6-Trichlorosalicylic acid binds to the active site of bacterial 5-nitrosalicylic acid reductase and inhibits its activity. It is an inhibitor of proton-translocating ATPases. 3,5,6-Trichlorosalicylic acid has been shown to be effective against a variety of bacteria at low concentrations. 3,5,6-Trichlorosalicylic acid has also been shown to inhibit some physiological activities such as the light emission and chemiluminescent reaction of luciferin in fireflies. This chemical reacts with chloride ions to produce light.</p>

<p>4-Aminobenzoic acid is a chemical compound that can be used as an antibacterial agent in wastewater treatment. It has been shown to be effective against Aerobacter aerogenes and other bacteria. 4-Aminobenzoic acid is a basic compound with an aromatic ring and four amine groups. It is often used in the synthesis of polymers, pharmaceuticals, dyes, and pigments. The polymerase chain reaction (PCR) technique uses 4-aminobenzoic acid as a cofactor for DNA synthesis. Electrochemical impedance spectroscopy (EIS) is another application of this chemical compound in which it acts as a redox mediator in the electrical circuit. 4-Aminobenzoic acid also has been shown to have toxic effects on bowel disease cells, which may be due to its ability to react with nucleophilic groups on cell surfaces or by inhibiting the production of essential proteins or enzymes within the cells</p>

<p>Starting material for euonyminol synthesis; inhibits melanogenesis</p>

Methyl 4-acetamido-2-methoxybenzoate is a chemical compound that belongs to the group of heterocycles. It is a precursor to the imidazopyridine, imidazopyrazine and thiazolopyridine classes of drugs. The protonation of methyl 4-acetamido-2-methoxybenzoate has been shown experimentally to be an important factor in its biological activity, especially for its binding affinity for DNA. Methyl 4-acetamido-2-methoxybenzoate has been used as an inotropic agent and as an atypical antipsychotic drug.

<p>2-Benzoylbenzoic acid is an organic compound with the chemical formula C6H5CO2. It is a white solid that is soluble in water, ethanol, and ether. 2-Benzoylbenzoic acid is stable at room temperature, but decomposes when heated to above 200°C. This compound can be used as a catalyst for the synthesis of polymers.<br>2-Benzoylbenzoic acid is used as a raw material for the production of ferrocenecarboxylic acid and ethylene diamine. The activity index of 2-benzoylbenzoic acid was found to be high (0.7) when it was tested against Streptococcus mutans and Staphylococcus aureus.</p>

<p>3-Chloro-5-hydroxybenzoic acid methyl ester is a fine chemical that can be used as a versatile building block and reaction component in the synthesis of complex compounds. It is soluble in organic solvents such as dichloromethane, chloroform, and acetone. 3-Chloro-5-hydroxybenzoic acid methyl ester has CAS No. 98406-04-3 and a molecular weight of 149. 2.</p>

<p>N-Phenylanthranilic acid is a nonsteroidal anti-inflammatory drug that inhibits the activity of cyclooxygenase-1 and cyclooxygenase-2. It has been shown to be effective against congestive heart failure in animal models. N-Phenylanthranilic acid also possesses potent anti-inflammatory activities that are mediated by inhibiting the production of prostaglandins. The compound binds to DNA and blocks the binding of transcription factors, leading to cell death. N-Phenylanthranilic acid has been shown to inhibit proliferation in human erythrocytes and k562 cells, as well as apoptosis pathway in these cells.</p>

3-Nitrobenzoic acid methyl ester is an organic compound that contains a hydroxyl group and a nitro group. It can be synthesized by the reaction of 3-nitrophenol and methanol in a solvent such as water or ethanol. The nitro group is important for the solvating power of this molecule, which has been shown to have approximations with other molecules. 3-Nitrobenzoic acid methyl ester is found in two different forms: the cis form and the trans form, which differ in the orientation of their nitro groups. The cis form is more stable than the trans form because it has a dipole moment. The vibrational frequencies are also higher for the cis form than for its trans counterpart. 3-Nitrobenzoic acid methyl ester has been shown to react with nintedanib, which is used to treat cancer, and inhibit kinetics. The kinetic data obtained from this study can

<p>4-Aminohippuric acid (4-AHA) is a substance that is used as an analytical tool to measure the amount of inulin in the blood. It is injected intravenously, and the 4-aminohippuric acid enters cells via facilitated transport. In cells, 4-aminohippuric acid binds to pyrazinoic acid to form a fluorescent product that can be detected by a spectrophotometer. This test has been used to study the role of various compounds in the angiotensin system and their effect on renal function.</p>

<p>2-Methyl-3-nitrobenzoic acid is a diketone that is used as a synthetic building block for the synthesis of fatty acid esters. This compound is also used to normalize butyric acid levels in blood, and has been shown to inhibit the formation of coumarin derivatives from nitrosalicylic acid. 2-Methyl-3-nitrobenzoic acid is an organic molecule with a molecular weight of 128.17 g/mol, and has four functional groups: two methyl groups, one carboxyl group, and one phenyl group. The compound reacts with a solution containing nitrite ions in an acidic environment to form nitrous acid (HONO) and 2-methylene-3-nitrobenzaldehyde (2MNB). 2MNB is soluble in water and has a solubility data of 0.0012 g/100 mL at 25 degrees Celsius.</p>

<p>Phenyl salicylate is a phenolic compound that is used as an antipyretic and analgesic. It has the ability to inhibit prostaglandin synthesis, which can lead to reduced inflammation in the body. Phenyl salicylate has been shown to bind to specific receptors on cells, which leads to inhibition of prostaglandin synthesis. This receptor binding may also be responsible for its anti-inflammatory properties. Phenyl salicylate is metabolized in the liver and excreted through the kidneys.</p>

<p>4-Hydroxybenzoic acid is a plant metabolite that is found in many plants and fruits. 4-Hydroxybenzoic acid has been shown to have anti-diabetic effects in vitro. This compound also has anti-inflammatory properties, which may be due to its ability to inhibit the production of effector proteins such as nitric oxide synthase and cyclooxygenase. The biological activity of 4-hydroxybenzoic acid is dependent on the concentration; at low concentrations it inhibits glucose uptake by cells, while at high concentrations it prevents cell growth.</p>

<p>3-Methoxy-2,4,5-trifluorobenzoic acid (3MTBF) is a ligand that binds to the active site of bacterial dehydrogenases. It is used to inhibit the growth of bacteria in the environment and food products. 3MTBF inhibits the production of fluoroquinolones by methylating their chlorides with methoxy groups. This compound also has bifunctional properties, as it can act as both a methylating agent and an inhibitor of dehydrogenase enzymes. 3MTBF inhibits the production of cancer cells by inhibiting transcription and translation, preventing cell division and proliferation. 3MTBF is thermostable, meaning it does not break down in high temperatures or at pH extremes.</p>

<p>2,4-Difluoro-3-hydroxybenzoic acid methyl ester is a fine chemical that is used as a versatile building block for research chemicals and other complex compounds. It can be used as a reaction component in the synthesis of new chemical entities or as a reagent for organic chemistry reactions. 2,4-Difluoro-3-hydroxybenzoic acid methyl ester has CAS No. 194804-80-3 and is available in high quality.</p>

<p>2-Fluoro-4-isopropyloxybenzoic acid is a fluorescent reagent with a high quality and purity. It is a complex compound that can be used as an intermediate in the synthesis of fine chemicals, pharmaceuticals, pesticides, herbicides, and other useful compounds. 2-Fluoro-4-isopropyloxybenzoic acid is also used as a starting material for the synthesis of speciality chemicals such as reaction components and versatile building blocks. It is soluble in organic solvents and has been shown to react with various functional groups.</p>

<p>Ethyl 4-iodobenzoate is an amide that reacts with a variety of substances, including retinoic acid and pemetrexed. It is a reactive substance that can be used in the synthesis of other substances such as iron oxides and transfer mechanism. Ethyl 4-iodobenzoate is also used for the preparation of picolinic acid and crystalline structure. Radical coupling reactions are most common and involve halides, phenyl groups, and aryl halides. The reaction temperature ranges from room temperature to 100 ˚C, while the reaction mechanism varies depending on the type of coupling reaction.</p>

<p>2,4-Dinitrobenzoic acid (2,4-DNBA) is a chemical reagent that has been used as a positive control for the detection of hydrogen bonding interactions. It is also used in analytical methods to detect protonation, carboxylate, and hydroxyl groups. This compound can be prepared from picric acid by nitration with nitric acid and then reacting with aniline. The 2,4-DNBA molecule contains two intramolecular hydrogen bonds and four intermolecular hydrogen bonds. 2,4-DNBA is classified as a trifluoroacetic acid derivative.</p>

3,5-Dichloro-4-hydroxybenzoic acid is a phenolic acid that can be found in aromatic hydrocarbons. It has been shown to have antiallergic properties and has been used as an extract to treat acute toxicities. 3,5-Dichloro-4-hydroxybenzoic acid has also been shown to inhibit the production of p-hydroxybenzoic acid by rat liver microsomes. This compound may be useful in treating high blood pressure and vascular disease. It may also be used as a natural remedy for arthritis, as it has shown antiinflammatory effects. In addition, this compound can inhibit the growth of cancer cells and stimulate the immune system by binding to monoclonal antibodies that are specific for acidic pH.

<p>3,5-Dimethyl-4-nitrobenzoic acid is a synthetic compound that has been used in the synthesis of other organic compounds. It is not currently used as a drug, but it has been shown to inhibit the growth of bacteria in vitro. The mechanism of action for this compound is unclear. 3,5-Dimethyl-4-nitrobenzoic acid has been shown to be active against the bacterium Typhimurium and may inhibit bacterial growth by being metabolised into nitrite or nitrate ions. This chemical can also be converted into a reactive intermediate that reacts with oxygen to form superoxide anion radicals, which are known to have antibacterial effects.</p>

<p>2-Chloro-4-trifluoromethylbenzoic acid is a chemical compound with the formula CHClFO. It can be obtained by deprotonation of 2,4,6-trichlorobenzoic acid with butyllithium and subsequent reaction with chlorotrifluoromethane. The product has two regioisomers, one in which the chlorine atom is attached to the para position on the benzene ring and the other in which it is attached to the ortho position. Substituents such as alkyl groups or lithium reagents can affect both reactivity and selectivity. The halogen substituent can also be replaced by other functional groups to make derivatives of this compound.</p>

<p>4-Vinylbenzoic acid is a water-insoluble polymer that has been shown to have bacteriostatic and fungistatic properties. 4-Vinylbenzoic acid inhibits bacterial growth by binding to the enzyme diphenolase, which is involved in the synthesis of cell wall precursors. This polymer also binds to cationic surfactants and is soluble in organic solvents such as ethanol and acetone. The mechanism of inhibition of fungal growth is not known, but it may be due to hydrogen bonding interactions with the cell membrane.<br>4-Vinylbenzoic acid has been shown to be effective against human serum, although it does not inhibit bacterial growth in this medium.</p>

4-Amino-5-chloro-2-methoxybenzoic acid is a compound that has been shown to be a potent 5-HT4 receptor agonist. It is used in the treatment of obesity and diabetes. The molecular structure of 4-Amino-5-chloro-2-methoxybenzoic acid consists of a carbonyl group and an amine group, which are bound to each other by a covalent bond. This molecule is found to bind to the 5HT4 receptor with high affinity, which leads to its efficacy as an antiobesity agent.

<p>2-tert-Butoxybenzoic acid is a versatile chemical that can be used as a reagent, a speciality chemical, or as an intermediate in the synthesis of other compounds. It is typically used in organic chemistry for the preparation of esters, amides, and nitriles. 2-tert-Butoxybenzoic acid is also useful as a building block for complex molecules. This compound has been shown to react with alcohols to form esters, with amines to form amides, and with nitro groups to form nitriles.</p>

<p>2-Ethynylbenzoic acid is an organic compound with a carboxylic acid functional group. It is an efficient method for the synthesis of amides from primary and secondary alcohols in the presence of a chloride donor, such as thionyl chloride. The reaction system is typically carried out in an organic solvent, such as dichloromethane or chloroform. The reaction mechanism proceeds by protonation of the alkene followed by nucleophilic attack by the amine on the carbonyl carbon atom. This step forms a tetrahedral intermediate that tautomerizes to give a furyl intermediate. The furyl intermediate then undergoes oxidative carbonylation to form 2-ethynylbenzaldehyde, which reacts with the amine to form 2-ethynylbenzoic acid. In this process, stereoselectivity can be achieved by using an acceptor that favors one enantiomer of 2-ethynylbenzaldehyde</p>

<p>3-N-Maleimidobenzoic acid is a chemical crosslinking agent that reacts with proteins through the formation of an amide bond. It has been shown to react with both actin subunits and human immunoglobulin. This molecule also reacts with spermatozoa, which are composed primarily of actin filaments, and is used in the preparation of polyclonal antibodies. 3-N-Maleimidobenzoic acid can be used to fix antigen onto a solid support for immunological purposes. It is also a cross-linking agent that can be used in cytochalasin B experiments to inhibit plastid activity in chloroplasts. 3-N-Maleimidobenzoic acid reacts with monoclonal antibodies by forming an amide bond, which can be used as a reaction product.</p>