Chemicals toluene-4-sulfonic acid CAS 104-15-4

Basic Info

Model No.: X-CAS 104-15-4

Type: Pharmaceutical Intermediates

Appearance: Liquid

Quality: Refined

Colour: Colorless

CAS:: 104-15-4

Name:: Toluene-4-sulfonic Acid

MF:: C7H8O3S

MW:: 172.20200

MP:: 106~107℃

Density:: 1.07

Additional Info

Packaging:  in 25kg drum

Productivity: 10000kg per month

Brand: zhishang

Transportation: Ocean,Land,Air

Place of Origin: Shandong, China (Mainland)

Supply Ability: in stock

Certificate: ISO CE

HS Code: 2904909090

Port: Shanghai,Tianjin,Qingdao

Product Description

 Spices CAS 82-34-8 and 1-Nitroanthraquinone


PTSA (molecular structure: p-CH3C6H4SO3H, also known as TsOH, English P-Toluene Sulfonic acid) referred to as PTS, is a non-oxidizing organic strong acid, white needle-like or powdery crystals, soluble in water, alcohol , Ether and other polar solvents. Very easy to deliquescence, easy to make wood, cotton fabric dehydration and carbonization, insoluble in benzene and toluene. Alkali melting to generate p-cresol. Common are p-toluenesulfonic acid monohydrate (TsOH.H2O) or tetrahydrate (TsOH.4H2O).

Methylbenzenesulfonic acid is produced industrially by sulfonation of toluene with concentrated sulfuric acid. The resulting p-toluenesulfonic acid often contains benzene sulfonic acid and sulfuric acid impurities, which can be purified by azeotropic drying after recrystallization of the impure sample in concentrated hydrochloric acid.

Paratoluene sulfonic acid is widely used in the synthesis of pharmaceuticals, pesticides, polymerization stabilizer and organic synthesis (esters, etc.) of the catalyst, coating intermediates and resin curing agent. Is commonly used in organic synthesis of acid catalyst. Use it with sodium hydroxide and sodium p-toluenesulfonate, and phosphorus pentachloride role, you can get p-toluenesulfonyl chloride. The latter is used in the nucleophilic substitution reaction and is also used as a protecting group for the alcoholic hydroxyl group. p-CH3C6H4SO3Na + PCl5 → p-CH3C6H4SO2Cl

The use of p-toluenesulfonic acid is also catalyzed alcohol on the protective group of dihydrofuran, carboxylic acid esterification, transesterification, acetal formation of aldehydes and so on.

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Product expansion

1> Cosmetic Raw Materials: Cosmetics is a variety of raw materials through a reasonable deployment of processing from the compound mixture. Cosmetics with a wide range of raw materials, different performance. According to the raw material properties and uses of cosmetics, can be divided into matrix materials and auxiliary raw materials in two categories. The former is a class of cosmetics in the main raw materials, cosmetics in the possession of a large proportion of the cosmetics play a major role in the role of the material. The latter is the formation of cosmetics, stability or to give color, smell and other characteristics of the role of these substances in the cosmetic formula is not used, but it is extremely important. Cosmetics are natural, synthetic or extracted from the role of different substances as raw materials, by heating, mixing and emulsification and other production processes processed from the chemical mixture.

2> Active Pharmaceutical Ingredients(API): API refers to the raw materials in the production of various types of preparations, which is the active ingredient in powder,crystal and paste for medicine use through chemical synthesis,plant extract, and preparations of biotechnology institute.It is one substance or mixture during the medicine making period, it can not be taken directly by patients.

3> Fragrance And Spices: Spice is a substance that can be scented by smelling or scented by taste, and is the raw material for the preparation of the fragrance. Spices are an important part of fine chemicals, it is composed of natural spices, synthetic spices and single fragrance.

4> Organic Raw Material: Intermediates are also known as organic intermediates. The use of coal tar or petroleum products as raw materials to produce dyes, pesticides, pharmaceuticals, resins, additives, and other intermediates.

5> Chemicals Used In Paints: Paint, the traditional Chinese name is paint. So-called coating is coated on the surface of the object that be protected or be adornment, and with the continuous film coating to form strong adhesion, usually in resin, or oil, or emulsion is given priority to, add or not add pigment, filler, add the corresponding additives, organic solvents or water preparation of viscous liquid.

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