CAS 41771-35-1, commonly identified as 1-chloro-2-ethoxyethane or 2-chloroethyl ethyl ether, is a versatile organic compound characterized by its dual functional groups, featuring both an ether linkage and a terminal halogen atom. This colorless liquid serves as a critical building block in sophisticated chemical synthesis, where the reactivity of the chlorine atom allows for nucleophilic substitution
dimethylsulfonium trifluoro (CAS: 316821-98-4) is a commercially important chemical raw material for professional manufacturing, formulation, laboratory, or synthesis applications. Its molecular formula is C₁₃H₁₃F₃O₅S₂, and its listed molecular weight is 370.4 g/mol. Depending on the confirmed grade, the material may function as an intermediate, reagent, solvent, surfactant, electrolyte, additive, coupling agent, or specialty ingredient. Buyers
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Glycereth-3, identified by CAS number 31694-55-0, is a non-ionic polyether derivative produced through the ethoxylation of glycerin, specifically incorporating an average of three moles of ethylene oxide. This clear, viscous liquid serves as a versatile raw material characterized by its excellent humectancy, high water solubility, and chemical stability across a broad pH range. As a
(4,8-Dihydroxynaphthalen-1-yl)dimethylsulfonium Triflate, identified by CAS number 380848-57-7, is a specialized organic salt characterized by a naphthalene backbone substituted with two hydroxyl groups and a dimethylsulfonium moiety, balanced by a trifluoromethanesulfonate (triflate) anion. This compound belongs to the class of arylsulfonium salts, which are recognized for their distinct electronic properties and reactivity profiles in advanced chemical
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Bis[3-(triethoxysilyl)propyl] tetrasulfide, identified by CAS 40372-72-3, is a bifunctional organosilane widely utilized as a coupling agent in the polymer and rubber industries. This chemical features a unique molecular structure comprising hydrolyzable ethoxy groups at one end and a reactive tetrasulfide chain at the other, enabling it to bridge inorganic fillers with organic elastomers. As a
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Methyl toluenesulfonate (CAS 28804-47-9), also called methyl o/p-toluenesulfonate or OPTSM, is supplied as a mixture of the ortho and para isomers, a colourless to slightly yellow liquid with a density of about 1.41 grams per cubic centimetre and a strong aromatic odour. It is the methyl ester of toluenesulfonic acid and a potent methylating agent:
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O-Methylisourea sulfate (CAS 29427-58-5), named in the CAS registry as carbamimidic acid methyl ester sulfate and also listed as O-methylisourea hydrogen sulfate or bisulfate, is the sulfuric acid salt of the reactive, volatile and strongly basic free base O-methylisourea. It is a white crystalline, water-soluble solid with the EINECS number 249-622-6, stable when kept dry
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As an essential organophosphorus catalyst and pharmaceutical intermediate, it is widely utilized in organic synthesis, including olefination and Suzuki reactions. Notably, it serves as a key raw material for synthesizing the active pharmaceutical ingredient (API) Sacubitril, a medication used to treat heart failure. It is also employed in manufacturing agrochemicals and dyestuffs.
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As a versatile building block, it serves as a crucial intermediate in the pharmaceutical industry for synthesizing antiviral, antifungal, and anticancer agents, such as pyrazole derivatives. In agrochemicals, it is used to manufacture targeted herbicides and pesticides. Additionally, it acts as a valuable reagent in organic chemical synthesis and chemical research. Due to its high
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Potassium 4-nitrophenolate (CAS 2840-22-4), also called potassium p-nitrophenolate or 4-nitrophenol potassium salt, is the potassium salt of 4-nitrophenol and appears as an intense yellow crystalline solid or powder that is readily soluble in water. The salt is strongly coloured in the visible region because the phenolate anion is highly conjugated with the para nitro group,
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4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine sulfate (CAS 25646-77-9), is a white to off-white crystalline powder that serves as the colour developing agent in modern colour negative photographic processes. It is a para-phenylenediamine derivative bearing an ethyl group and a hydroxyethyl group on one nitrogen and a methyl group on the aromatic ring, an asymmetric substitution pattern developed for the
Poly(sodium 4-styrenesulfonate) (CAS 25704-18-1) is the water-soluble sodium salt of polystyrenesulfonic acid, a linear anionic polyelectrolyte whose chains carry a sulfonate group on every aromatic ring. It is supplied as a white to off-white powder or as an aqueous solution, with weight-average molecular weights ranging from a few thousand to over one million, and narrow-polydispersity
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This compound (CAS 258872-05-8), also abbreviated TBPDPS-PFBS, is a triarylsulfonium salt in which a diphenyl(4-tert-butylphenyl)sulfonium cation is paired with the nonafluorobutanesulfonate anion, sometimes written as (4-(tert-butyl)phenyl)diphenylsulfonium 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate. It is a white to off-white solid that is thermally stable and soluble in the organic solvents used for photoresist formulations, and it is stored sealed and dry
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Sorbitan monopalmitate (CAS 26266-57-9), widely known by the trade name Span 40, is a nonionic sorbitan fatty acid ester made from sorbitol and palmitic acid. It is a waxy, cream-coloured solid with a melting point of about 46 to 47 degrees Celsius and a hydrophilic-lipophilic balance of approximately 6, which places it among the more
Trimethylsilyl trifluoromethanesulfonate (CAS 27607-77-8), commonly called TMS triflate or TMSOTf and listed with EC number 248-565-4, is a colourless to pale yellow liquid and one of the most reactive silylating agents available, supplied at 99 percent purity. It is strongly moisture sensitive and corrosive, fuming in humid air and hydrolysing rapidly to hexamethyldisiloxane and trifluoromethanesulfonic
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4,5-Bis(2-methoxyethoxy)-2-nitrobenzonitrile (CAS 236750-65-5) is a benzene ring carries two methoxyethoxy side chains, a nitro group and a nitrile group. It is recorded in the GSRS substance registry and is an established advanced intermediate and specified impurity of the anticancer drug erlotinib, an epidermal growth factor receptor tyrosine kinase inhibitor used in non-small-cell lung cancer and
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