Sorbitan trioctadecanoate (CAS: 26658-19-5), known as Span 65, is a non-ionic lipophilic surfactant formed by esterifying sorbitan with three stearic acid chains. This cream-colored waxy solid functions primarily as a water-in-oil emulsifier and stabilizer with a very low hydrophilic-lipophilic balance, making it ideal for structuring oil-rich formulations and providing texture to creams and ointments. In
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Sodium 4-styrenesulfonate (CAS: 2695-37-6) is a reactive water-soluble monomer featuring a vinyl group for polymerization and a sulfonate group that imparts strong anionic character to derived polymers. This white crystalline solid readily undergoes free-radical polymerization alone or with comonomers such as acrylamide, acrylic acid, and styrene, producing polymers with excellent water solubility, dispersing power, and
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Potassium Trifluoromethanesulfonate (CAS: 2926-27-4), commonly called potassium triflate, is the potassium salt of triflic acid featuring the highly stable, weakly coordinating triflate anion. This white crystalline salt serves as a versatile reagent and electrolyte component in organic synthesis, electrochemistry, and advanced materials. In synthetic chemistry, it functions as a source of the triflate anion for
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Sodium trifluoromethanesulfonate (CAS: 2926-30-9), known as sodium triflate, is the sodium salt of trifluoromethanesulfonic acid, combining the weakly coordinating triflate anion with a readily available alkali cation. This white, highly water-soluble salt serves multiple roles in chemical synthesis, electrochemistry, and materials science. In organic synthesis, it acts as a mild base and triflate source for
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Potassium perfluorobutanesulfonate (CAS: 29420-49-3), known as PFBS potassium salt, is a short-chain perfluorinated sulfonate surfactant featuring exceptional chemical and thermal stability. Unlike long-chain perfluoroalkyl substances, its C4 fluorocarbon tail offers a more favorable environmental profile while retaining the surface-active properties of fluorosurfactants: dramatically lowering surface tension, providing outstanding wetting on low-energy surfaces, and resisting harsh
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Atazanavir Sulfate (CAS: 229975-97-7) is the sulfate salt of atazanavir, an azapeptide protease inhibitor widely used in antiretroviral therapy for the treatment of HIV-1 infection. By selectively binding to the HIV-1 protease enzyme, it prevents the cleavage of viral polyproteins into functional components, thereby blocking viral maturation and the production of infectious virions. The sulfate
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Sodium methanesulfonate (CAS: 2386-57-4) is the sodium salt of methanesulfonic acid, a strong organic acid whose salt combines high water solubility with excellent thermal and chemical stability. This white crystalline compound serves as a convenient source of the methanesulfonate anion in chemical synthesis, electrochemistry, and specialty formulations. In organic synthesis, it functions as a mild
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Triethoxypropylsilane (CAS: 2550-02-9), also known as n-propyltriethoxysilane, is an organosilane coupling agent combining three hydrolyzable ethoxy groups with a hydrophobic n-propyl chain. Upon exposure to moisture, the ethoxy groups hydrolyze to silanols that bond covalently to silica, glass, metals, and mineral surfaces, while the short alkyl chain modifies surface energy and compatibility with organic matrices.
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Sorbitan Trioleate (CAS: 26266-58-0), commercially known as Span 85, is a non-ionic lipophilic surfactant produced by esterifying sorbitan with three oleic acid chains. This amber oily liquid possesses a very low hydrophilic-lipophilic balance, making it an exceptional water-in-oil emulsifier and dispersing agent for oil-based systems. It is widely employed to stabilize emulsions in cosmetic creams
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2-[2-phenoxy]ethyl Methanesulfonate (CAS: 160969-03-9) is a functionalized alkyl methanesulfonate (mesylate) ester featuring a phenoxy-substituted ethyl chain. As an activated alcohol derivative, the mesylate group serves as an excellent leaving group in nucleophilic substitution reactions, enabling efficient carbon-heteroatom bond formation in pharmaceutical and fine chemical synthesis. The phenoxy aromatic ring provides a hydrophobic handle that can
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O-benzylglycine toluene-p-sulphonate (CAS: 1738-76-7) is a protected amino acid derivative consisting of glycine benzyl ester paired with p-toluenesulfonic acid. The benzyl ester protects the carboxyl group during peptide coupling reactions, while the salt form provides a crystalline, easily handled solid that stabilizes the free amine. Upon completion of synthetic transformations, the benzyl group is readily
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Ethoxytrimethylsilane (CAS: 1825-62-3), also known as ethyl trimethylsilyl ether, is a silylating reagent featuring a trimethylsilyl group bonded to an ethoxy oxygen. This volatile liquid serves as an efficient trimethylsilyl group donor in organic synthesis, protecting alcohols, phenols, and carboxylic acids as their trimethylsilyl ethers during multi-step transformations. The resulting silyl ethers are stable to
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Ethyl 3,4-bisbenzoate (CAS: 183322-16-9) is a diester intermediate derived from a substituted aromatic diacid, featuring two ester groups capable of independent or simultaneous transformation. The ester functionalities serve as versatile handles for hydrolysis to the parent acid, aminolysis to amides, reduction to alcohols, or transesterification to higher-value esters, making this compound a flexible building block
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Ammonium Lauryl Sulfate (CAS: 2235-54-3) is an anionic surfactant featuring a C12 alkyl chain sulfate neutralized with ammonium rather than sodium. This clear aqueous solution or paste delivers strong detergency, rapid wetting, and abundant foam, with the ammonium counterion offering slightly different solubility and mildness characteristics compared to sodium lauryl sulfate. It is extensively used
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diethoxymethylsilane (CAS: 13501-76-3) refers to chloromethyldiethoxymethylsilane, a reactive organosilane featuring a hydrolyzable chloromethyl group and two ethoxy groups on silicon. This dual-functionality building block is valued in silicone chemistry, where the ethoxy groups undergo moisture-catalyzed hydrolysis and condensation for cross-linking or surface bonding, while the chloromethyl group provides a reactive handle for nucleophilic substitution, quaternization,
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Sodium Decyl Sulfate (CAS: 142-87-0) is an anionic surfactant featuring a C10 alkyl chain terminated by a sulfate group neutralized with sodium. This water-soluble surfactant offers intermediate hydrophobicity between shorter and longer chain sulfates, providing effective wetting, foaming, and emulsifying performance with lower irritation potential than longer-chain homologs. It is widely used in personal care
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