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
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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
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Lead(II) methanesulfonate (CAS 17570-76-2) is a water-soluble lead salt normally supplied as a 50 percent by weight aqueous solution, a clear colourless to slightly yellow liquid with a density noticeably above that of water and no strong odour. Because lead ions are neurotoxic, bioaccumulative and classified as reproductive and developmental toxins, the material is regulated
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Disodium 1,5-naphthalenedisulfonate (CAS 1655-29-4) is a water-soluble naphthalene disulfonic acid salt in which the two sulfonate groups occupy positions 1 and 5, giving a linear, symmetric and rigid anionic scaffold. It is a white to off-white crystalline solid, freely soluble in water and sparingly soluble in organic solvents, and it is thermally stable under ordinary
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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.
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2-Methoxyethyl p-toluenesulfonate (CAS 17178-10-8), also named 2-methoxyethyl 4-methylbenzenesulfonate, p-toluenesulfonic acid 2-methoxyethyl ester or 2-methoxyethyl tosylate, is the tosylate ester of 2-methoxyethanol. It is a colourless to pale yellow liquid with a boiling point near 141 degrees Celsius at reduced pressure and a purity of 98 percent or higher by gas chromatography, and it is supplied
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Sodium 2-chloroethanesulfonate monohydrate (CAS 15484-44-3) is a water-soluble, crystalline alkyl sulfonate salt containing a reactive carbon-chlorine bond at the beta position, with a melting point near 292 to 296 degrees Celsius and a density of about 1.58 grams per cubic centimetre. It is a light orange to white solid that is thermally stable and easily
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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
This compound, diethyl N-[4-[2-(2-amino-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]-L-glutamate 4-methylbenzenesulfonate (CAS 165049-28-5), is an advanced protected precursor of the antifolate anticancer drug pemetrexed disodium, sometimes designated pemetrexed intermediate INT-5. It is a solid that must be stored in the dark under inert atmosphere at room temperature because the pyrrolopyrimidinone core is sensitive to light, moisture and oxidation, and it is
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4-methylbenzenesulfonate salt of (1R,2S)-2-fluorocyclopropan-1-amine (CAS 143062-84-4), a single-enantiomer fluorinated cyclopropyl amine supplied as a white to off-white crystalline solid with a purity of 98 percent or higher and a reported boiling point near 418 degrees Celsius at 760 mmHg. The molecule pairs a small, strained cyclopropane ring bearing both a fluorine atom and a primary
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2-Aminoimidazole hemisulfate (CAS 1450-93-7), also named 2-imidazoleamine sulfate, bis(2-aminoimidazole) sulfate or 2-aminoimidazole sulfate, is the sulfuric acid salt of 2-aminoimidazole, a nitrogen-rich five-membered heterocycle related to the imidazole alkaloids found in marine sponges. It is a white to off-white crystalline solid with a melting point near 270 degrees Celsius, a reported boiling point of about
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Aminoacetonitrile bisulfate (CAS 151-63-3), also described as aminoacetonitrile hydrogen sulfate, sulfuric acid compound with 2-aminoacetonitrile or aminoacetonitrile sulfate, is the sulfuric acid salt of the simplest alpha-aminonitrile. The free nitrile is a low-boiling, strongly basic and hazardous liquid that is awkward to store and dose, so the material is supplied as the stable, water-soluble crystalline
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