sulfonic acid CAS NO.27176-87-0

Sulfonic acid (sulfonic acid), sulfonic group and alkyl (aryl) connected to a class of organic compounds.General formula R - SO3H, R for hydrocarbon type.Sulfonic acid is mostly synthetic products, only the beta taurine NH2CH2CH2SO3H a few such as sulfonic acid exists in nature.Sulfonic acid group is a highly water soluble strongly acidic groups, sulfonic acid is water soluble strongly acidic compounds.Sulfonic acid groups of the aromatic sulfonic acid molecules can be replaced by hydroxyl, cyano, preparation of phenol and cyanide is intermediate.Sulfonic acid sulfonation reaction of aromatic hydrocarbon, or mercaptan oxidation reaction.Mesylate for esterification, hydrolysis and alkylation catalyst.Long chain sulfonic acid sodium salt, such as n - C11H23 - detergent CH2 is a kind of soft to hard water.A lot of dye molecules of sulfonic acid groups can make colored compounds with water soluble.Sodium dodecyl benzene sulfonate detergents.By sulfonic acid chloride can be obtained from sulfone, USES a lot in the organic synthesis.Lang H section of the sulfonic acid molecules, and can be replaced by halogen atoms, amino, etc.For example, sulfonyl chloride is commonly used in organic synthesis and analysis of chemical intermediates.The amino sulfonamide is a kind of anti-inflammatory drugs.Saccharin sodium is also a kind of sulfanilamide.