Building Blocks Idrocarburici

<p>S19270 - 1-Trimethylsilyl-3,3-dimethyl-1-butyne</p>

<p>S20125 - O-Trimethylsilylpropargyl alcohol</p>

<p>Stability Highly Volatile<br>Applications Vinylcyclopropane is a useful synthetic intermediate. Vinylcyclopropane and its derivatives can participate in a variety of transition-metal-catalyzed multicomponent cycloadditions to produce five- to eight-membered carbocycles.<br>References Jiao, L., et al.: J. Org. Chem., 78, 6842 (2013); Pasto, D., et al.: Tetrahedron Lett., 9, 713 (1979); Larock, R., et al.: Tetrahedron, 52, 2743 (1996)<br></p>

<p>Applications 7-Octyn-1-ol is used in the synthesis of the sex pheromone of the citrus leafminer, Phyllocnistis citrella.<br>References Ando, T., et al.: Agric. Biol. Chem., 49, 3633 (1985), Beevor, P., et al.: J. Chem. Ecol., 12, 1 (1986), Kerr, D., et al.: J. Med. Chem., 33, 1958 (1990), McElfresh, J., et al.: Ecology, 82, 3505 (2002),<br></p>

<p>Docosanol is a drug that is used for the treatment of various skin disorders, including psoriasis, eczema, and ichthyosis. It is also used as an adjuvant in the treatment of chronic obstructive pulmonary disease. Docosanol is a lipid molecule that has been shown to have antiviral, antibacterial, antifungal, and antiprotozoal properties. It can be used as a carrier for topical medications and has been shown to have anti-inflammatory effects. The mechanism of action for docosanol is not well understood but may involve its ability to bind to Toll-like receptors on macrophages and neutrophils in the skin. This binding inhibits the synthesis of inflammatory mediators such as prostaglandins and leukotrienes. Docosanol also has physiological effects on water balance by acting as a surfactant in the lungs and preventing water vapor from escaping through respiratory membranes in the nose or mouth. Docosanol</p>

<p>2-Bromo-2-nitro-1,3-propanediol (BNP) is a preservative that is used in wastewater treatment. It is an antimicrobial agent that has synergistic effects with other antimicrobial agents such as triclosan, benzalkonium chloride and sesquiterpene lactones. 2-Bromo-2-nitro-1,3-propanediol has been shown to have a phase transition temperature of -28°C, which can be used to identify it in the laboratory. This compound also has a pK value of 4.4, which indicates that it is weakly acidic. 2-Bromo-2-nitro-1,3-propanediol can be used as an analytical method for the determination of p - hydroxybenzoic acid in aqueous samples by electrochemical impedance spectroscopy (EIS).</p>

<p>Hydroxypropanedial is a hydroxy group-containing compound that is not found in natural sources. It has antioxidative properties, which may be due to its ability to scavenge reactive oxygen species or donate hydrogen atoms to free radicals. The compound also has cyclohexane ring and carbonyl groups, which are responsible for the hydroxyl and carboxylic acid functionalities respectively. This substance is used as a chromatographic reagent to measure second-order rate constants of reactions involving hydroxyl radicals. Hydroxypropanedial absorbs light strongly at wavelengths shorter than 300 nm, which is the most effective wavelength range for uv absorption in biological systems.</p>

<p>2,2,4,4,6,8,8-Heptamethylnonane is a hydrogenated form of 2-methylnonane. It is used as a model system for fatty acids in order to study the kinetics of air entrainment and constant pressure distillation. The chemical stability of 2,2,4,4,6,8,8-heptamethylnonane has been shown to be excellent when heated at 200°C under nitrogen. This compound can also be used as an analytical method for ethylene diamine in pharmaceutical preparations of sodium salts and boron nitride. The use of 2-methylnonane as a starting material may lead to the production of chinese herb by reacting with acetic acid or formic acid.</p>

<p>Ethanesulfonic acid solution - 70 wt. % in H2O is a monosodium salt that is used as an enzymatic reagent for the determination of bacteria and fungi, as well as for the detection of infectious diseases. It has been shown to be effective against microdialysis probes with a high degree of sensitivity and specificity. Ethanesulfonic acid solution - 70 wt. % in H2O has been shown to have significant physiological effects on various regions of the body, including bowel disease, polymerase chain reaction (PCR), glycol ethers, antimicrobial agents, and radiation. Ethanesulfonic acid solution - 70 wt. % in H2O also inhibits the growth of bacteria by acting as a coumarin derivative that reacts with nucleotides to form dinucleotide phosphate, which blocks DNA synthesis and transcription from RNA templates.</p>