Benzenesulfonyl Chloride

Benzenesulfonyl Chloride is a colorless oil type fluid which cannot easily flow due to its thick and sticky nature.This is used for evaluating thiamine in different food products . Benzenesulfonyl Chloride is also used as derivatization reagent in-order to identify various amine in waste water and sub water.

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Detailed Description for Benzenesulfonyl Chloride

Sulfonic acid is a compound with general formula RSO2OH, where R is an aliphatic or aromatic hydrocarbon. It is a derivative of sulfuric acid (HOSO2OH) where an OH has been replaced by a carbon group or a compound where a hydrogen atom has been replaced by treatment with sulfuric acid; for example, benzene is converted to benzenesulfonic acid (water-soluble). Sulfonic acid has a sulfur atom bonded to a carbon atom of a hydrocarbon and bonded also to three oxygen atoms, one of which has been attached to a hydrogen atom.

Sulfonic acid is acidic due to the hydrogen atom, stronger than a carboxylic acid. Sulfonic acid is one of the most important organo sulfur compounds in organic synthesis. Sulfonic acids are used as catalysts in esterification, alkylation and condensation reactions. Sulfonates are salts or esters of sulfonic acid. Sulfonic salts are soluble in water. Sulfonic acid and its salts present in organic dyes provide useful function of water solubility and or improve the washfastness of dyes due to their capabiltity of binding more tightly to the fabric.




clear liquid


15 - 17 C

STABILITY Stable under normal temperatures and conditions


They are widely used in the detergent industry. Alkylbenzene sulfonic acid is the largest-volume synthetic surfactant because of its relatively low cost, good performance, the fact that it can be dried to a stable powder and the biodegradable environmental friendliness. Sulfonate cleaners do not form an insoluble precipitates in hard water. Sulfonic acid salts and esters are intermediates widely used in organic synthesis and particularly phenolic compounds and cation exchange resins. They are synthetic intermediates for a number of biologically active compounds and pharmaceutical candidates such as sulfa drugs.


Benzenesulfonic acid consumption is linked mostly to phenol and resorcinol production with sodium hydroxide. It is used as a catalyst for dehydration and used in solidifying resins. It is a base material for electroplating solutions. Benzenesulfonic acid, or a derivative thereof, is used as a synthetic intermediate for a number of chemical families of pharmaceuticals, pesticides, dyes, pigments, fluorescent brighteners, and other organic compounds. Commercially, benzenesulfonic acid sodium salt is more common due to high deliquescence of the base material. Benzenesulfonyl hloride readily reacts with amines and metals. It serves as a protecting group which is readily cleaved.

Toluene sulfonic acids are used in the production of toluenesulfonamide which has been used as the parent material for the production of saccharin.  o-Toluenesulfonamide has been the parent material for the production of saccharin. In the phase of either solid or liquid, large amount of toluenesulfonamide class substances including the mixtures of N-ethyl-o/p-toluene sulfonamides, N-methyl-o/p-toluene sulfonamides and o/p-toluene sulfonamides are used as flow-promoting agents for paints, adhesives, nitrocellulose, coating materials and as plasticizers for polyamides and other thermosetting resins to increase flexibility. They promote the resistance to oils, greases, and solvents. They are used as antistatic agents and as gloss enhancers in plastic film preparations. They are used as basic material of electroplating solutions. Toluenesulfonamides, or derivatives thereof, are used as intermediate for a number of organic synthesis for the field of pharmaceuticals, pesticides, dyes, pigments, fluorescent brighteners, resins, and other organic target compound preparations. P-toluenesulphonamide is used as the precursor of nitrogen-containing crown ethers as designated for the 1,7-dioxa-4,10-diazacyclododecane ring system. The use of p-toluenesulphonamide as a derivative of ammonia activated to alkylation by alkyl halides is exemplified by the synthesis of N-tosyl-2,3-dihydroisoindole from o-xylylene dibromide. p-Toluene sulfonic acid is often used as a catalyst in the formation of acetal which water must be removed from the reaction mixture to escape reversible reaction. Water is removed azeotropically by distilation. (Toluene is the solvent).

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