Chemical Products

This compound (CAS 200000-59-5), chemically (2R,3S)-2-[(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholine 4-methylbenzenesulfonate, is an advanced chiral intermediate in the manufacture of the antiemetic drug aprepitant. It is a solid that should be stored dry, cool and protected from light and moisture, and it is catalogued as a pharmaceutical intermediate rather than a finished active substance. The molecule carries several defined

This compound (CAS 1803573-21-8), named 2-(bis(tert-butoxycarbonyl)amino)-5-bromopyridin-3-yl 4-methylbenzenesulfonate or imidodicarbonic acid 2-[5-bromo-3-[[(4-methylphenyl)sulfonyl]oxy]-2-pyridinyl]-, 1,3-bis(1,1-dimethylethyl) ester, is a heavily functionalised pyridine building block supplied as a solid at 98 percent purity for laboratory and manufacturing use. Three reactive sites coexist in the molecule: an aryl bromide, a tosylate ester and two acid-labile tert-butoxycarbonyl groups, so it must be

Ethyl 2-(2-chloroethoxy)acetate (CAS 17229-14-0), also listed as ethyl 2-chloroethoxyl acetic acid or ethyl 2-chloroethoxy acetate, is a colourless liquid bifunctional ester containing a reactive primary alkyl chloride and an ethyl ester on a short glycol-like backbone. It is stored sealed, dry and refrigerated at two to eight degrees Celsius because the chloroether linkage is sensitive

L-Leucine benzyl ester p-toluenesulfonate (CAS 1738-77-8), commonly abbreviated H-Leu-OBzl.TosOH, is the crystalline tosylate salt of the benzyl ester of L-leucine and is classified as a dangerous good for transport. It is a white to off-white solid that dissolves in methanol, ethanol, dimethylformamide and dichloromethane and is stable in storage when kept dry and cool away

H-Phe-OBzl.TosOH, or L-phenylalanine benzyl ester p-toluenesulfonate (CAS 1738-78-9), is the tosylate salt of the benzyl ester of L-phenylalanine. It is a white crystalline solid with good storage stability when kept dry, and it is soluble in polar aprotic and alcoholic solvents such as dimethylformamide, dimethyl sulfoxide, methanol and dichloromethane, and only sparingly soluble in water.

Linezolid mesylate ester (CAS 174649-09-3), also known as linezolid related compound D, Linezolid USP Related Compound D or (R)-[3-(3-fluoro-4-morpholinophenyl)-2-oxooxazolidin-5-yl]methyl methanesulfonate, is a white to off-white crystalline solid supplied at 99 percent purity in quantities ranging from ten milligrams to several grams. It is the mesylate ester of the oxazolidinone alcohol at the heart of the

L-Valine benzyl ester p-toluenesulfonate (CAS 16652-76-9), commonly written H-Val-OBzl.TosOH, is the crystalline tosylate salt of the benzyl ester of L-valine. It is a white to off-white solid melting near 160 to 162 degrees Celsius, soluble in polar organic solvents such as methanol, ethanol, dichloromethane and dimethylformamide, and it is stable when kept dry and cool.

4-(Ethoxyethoxy)styrene (CAS 157057-20-0), also called 1-ethenyl-4-(1-ethoxyethoxy)benzene or 1-(1-ethoxyethoxy)-4-vinylbenzene, is a colourless to pale yellow transparent liquid styrene derivative in which the phenolic hydroxyl of 4-hydroxystyrene has been masked as an acid-labile ethoxyethyl acetal. Commercial material is stabilised with a small amount of tert-butylcatechol to prevent spontaneous polymerisation, and purity is typically 98 percent or higher

2-(2,2,2-Trifluoroethoxy)phenol (CAS 160968-99-0), also known as 2,2,2-trifluoro-2′-hydroxyphenetole or 2-(trifluoroethoxy)phenol, is a fluorinated aromatic alcohol supplied as a colourless to pale liquid or low-melting solid at 98 percent purity and classified as a skin irritant. It combines a phenolic hydroxyl group with a trifluoroethoxy side chain, a substitution pattern that markedly lowers the pKa of the

This compound (CAS 160969-00-6), also named 2-[2-(2,2,2-trifluoroethoxy)phenoxy]ethyl bromide or 1-(2-bromoethoxy)-2-(2,2,2-trifluoroethoxy)benzene, is a colourless transparent liquid aryl alkyl bromide with a density of about 1.5 grams per cubic centimetre and a purity of 98 percent or higher. As the name implies it contains both a trifluoroethoxy-substituted aromatic ring and a reactive 2-bromoethyl ether chain, and it