Amino Acids (AA)

<p>Applications L-Citrulline-d7, is the labeled analogue of L-Citrulline (C535700), which is an amino acid, first isolated from the juice of watermelon, Citrullus vulgaris Schrad., Cucurbitaceae. It is also used in the treatment of asthenia.<br>References Kurtz, et al.: J. Biol. Chem., 122, 477 (1938), Rajantie, J., et al.: J. Pediatr., 97, 927 (1980), Carpenter, T.O., et al.: N. Engl. J. Med., 312, 290 (1985),<br></p>

<p>Applications N-Butyl-N-methylnitrosamine, is an nitroso impurity found in “Sartans” , a class of drugs that block the action of angiotensin.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br></p>

<p>Applications DL-Methionine methylsulfonium chloride (cas# 3493-12-07) is a useful research chemical.<br></p>

<p>2-Methoxy 17b-estradiol is a synthetic estrogen that binds to DNA and alters the transcriptional process. It has been shown to induce apoptosis by activating the pro-apoptotic protein Bax and inhibiting the anti-apoptotic protein Bcl-2. This drug inhibits the metabolic response of cancer cells to chemotherapy, leading to a decrease in tumor size, and can be used as an implantable device for treating cancer. 2-Methoxy 17b-estradiol also has minimal toxicity in comparison to other estrogens, with no significant cytotoxicity observed in cells of reproductive tissues or endocrine organs, nor any significant toxic effects on liver function tests or serum lipids.</p>

<p>DL-Proline is a biological molecule that has been shown to bind to the DNA binding domains of proteins. This binding can be seen with the crystal structures of DL-proline and protein. The reaction mechanism for DL-proline is as follows:<br><br>DL-Proline + Protein → Proline + Protein<br><br>The equilibrium constant for this reaction is 1.0 at 298 K. The pKa value for the amide group in DL-proline is 4.8, which means that it will react with water and form an amine group at physiological pH levels. DL-Proline has been shown to have metabolic disorders.</p>

<p>Gly-Asp-OH is a medicine that has proliferative activity. It is also an immunoregulatory and biologically active substance, which suppresses the production of cytokines IL-10 in mononuclear cells. Gly-Asp-OH is a synthetic compound with medicinal properties. The structure of this compound was elucidated by chemical analysis and spectroscopic methods. It can be used as an anti-inflammatory agent or to prevent cell death induced by necrosis or apoptosis.</p>

<p>(Fluoro-Methylphosphoryl)Oxycyclohexane is an organophosphorus compound that acts as a nerve agent. It inhibits the enzyme acetylcholinesterase, which is responsible for breaking down acetylcholine, leading to excess cholinergic stimulation. This can cause excessive contraction of muscles or even death. The exposure to (Fluoro-Methylphosphoryl)Oxycyclohexane can be detected by analytical methods such as gas chromatography/mass spectrometry. Oximes are used in the reactivation of acetylcholinesterase and are effective in preventing neuronal death. They bind to the phosphonyl group in (Fluoro-Methylphosphoryl)Oxycyclohexane and prevent it from inhibiting the enzyme acetylcholinesterase.</p>

<p>N,N'-Di-boc-(L)-cystine-dimethyl ester is a fine chemical that can be used as a versatile building block. It is a complex compound with CAS No. 77826-55-2 and can be used as a reagent or speciality chemical in research. This chemical is also useful for the synthesis of various compounds and has been proven to be an excellent scaffold for chemical reactions.</p>

<p>(1R,2S,3S,5S)-3-(4-Iodophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylicacid methyl ester is a molecule that has been shown to be effective in lowering the symptoms of Parkinson's disease. It also prevents the uptake of dopamine and serotonin in the brain by binding to dopamine and serotonin transporters on the cell membrane. This drug has been shown to be safe at doses up to 100 mg/kg/day in rats, but has not been tested in humans. The drug is stable in neutral pH environments and does not degrade upon exposure to light or oxygen.</p>

<p>7-[5-(Fluoro-methyl-phosphoryl)oxypentyl]-4-nitro-2,1,3-benzoxadiazole is a reactivator of the central nervous system. It is a noncompetitive antagonist at muscarinic receptors and blocks postsynaptic acetylcholine release from cholinergic neurons. It has been shown to have no effect on blood pressure but does cause an increase in locomotor activity in animals. This drug binds to the hippocampal formation and the ventral hippocampus, which are areas of the brain that are involved in memory and spatial navigation. The distribution of this drug postulated to be due to its ability to penetrate micron sized openings in cell membranes.</p>