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104-15-4 Suppliers

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Product FOB Price Min.Order Supply Ability Supplier
P-Toluenesulfonic acid
Cas No: 104-15-4
No Data 1 Kilogram 1500 Metric Ton/Year Suzhou Raioshow New Material Co.,Ltd Contact Supplier
High quality P-Toluene Sulfonic Acid 95% supplier in China
Cas No: 104-15-4
No Data 1 Metric Ton 30 Metric Ton/Month Simagchem Corporation Contact Supplier
High purity 104-15-4 p-Toluenesulphonic acid
Cas No: 104-15-4
USD $ 100.0-500.0 / Gram 1 Gram 99999 Gram/Year Hangzhou Dingyan Chem Co., Ltd Contact Supplier
P-Toluenesulfonic Acid for Pharmaceutical Intermediates
Cas No: 104-15-4
USD $ 3.0-3.0 / Kilogram 1 Kilogram 10 Metric Ton/Month Hebei yanxi chemical co.,LTD. Contact Supplier
p-Toluenesulfonic acid CAS:104-15-4
Cas No: 104-15-4
USD $ 0.32-0.98 / Gram 1 Gram 1 Metric Ton/Day WUHAN MULEI NEW MATERIAL CO., LTD Contact Supplier
Good quality p-Toluenesulfonic acid//cas104-15-4
Cas No: 104-15-4
No Data 1 Metric Ton 2000 Metric Ton/Month Hefei TNJ chemical industry co.,ltd Contact Supplier
p-Toluenesulfonic Acid
Cas No: 104-15-4
USD $ 2.0-3.0 / Kilogram 1 Kilogram 50 Metric Ton/Day EAST CHEMSOURCES LIMITED Contact Supplier
1-methyl-1-cyclohexa-2,4-dienesulfonic acid
Cas No: 104-15-4
No Data 10 Milligram Amadis Chemical Co., Ltd. Contact Supplier
4-Methylbenzenesulphonic acid
Cas No: 104-15-4
USD $ 5.0-5.0 / Kilogram 1 Kilogram 1000 Kilogram/Month Enke Pharma-tech Co.,Ltd. (Cangzhou, China ) Contact Supplier
p-Toluenesulfonic acid
Cas No: 104-15-4
No Data 1 Kilogram 1-100 Metric Ton/Month Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier

104-15-4 Usage

Production method

By p-toluenesulfonyl chloride hydrolysis derived. Toluene can also be used as raw materials, sulfonated by sulfuric acid derived.

Chemical Properties

Clear colorless to light yellow solution


ChEBI: An arenesulfonic acid that is benzenesulfonic acid in which the hydrogen at position 4 is replaced by a methyl group.

Hazards & Safety Information

Category:Corrosive articles
Toxicity classification:Low toxicity
Acute toxicity
Oral-rat LD50: 2480 mg/kg
Flammability hazard characteristics
Combustible; fire in the release of toxic sulfur dioxide gas
Storage and transportation characteristics
Storehouse is ventilates, low temperature and dry; Store with base separately
Extinguishing agent
Mist water, carbon dioxide, foam

Refer to quality standards

Item/Index Industrial Grade Pharmaceutical Grade Refined Grade Reagent Grade (Chemically Pure)
Content (as C7H8O3S • H2O)% ≥ 90-93.0 96.0 97.0 98.0
Free acid (H2SO4) ≤% 3.0 0.7 0.5 0.1
Moisture (excluding crystal water) ≤% 4.0 3.5 2.5 1.5
Iron (in Fe ++) ≤ ppm 50 30 30 10
Ignition residue ≤%/0.2 0.2 0.02
Melting point (°C)// 102-105
Ethanol dissolved test/qualified qualified qualified
Water dissolution test/qualified qualified qualified

Chemical properties

Colorless monoclinic sheet or columnar crystals. Soluble in ethanol and ether, slightly soluble in water and hot benzene.


(1) For chemical reagents, but also for dyes, organic synthesis.
(2) Used as the intermediates of medicine (such as doxycycline), pesticides (such as dicofol), dyes. Also used in detergents, plastics, coatings and so on.
(3) For medicine, pesticides, dyes and detergents, but also for plastics and printing coatings.
(4) Widely used in the catalyst synthetic medicine, pesticides, polymerization of the stabilizer and organic synthesis (esters, etc.). Also used as medicine, paint intermediates and resin curing agent.


p-toluene sulfonic acid (Its molecular structural formula is p-CH3C6H4SO3H, also known as TsOH, English name is p-toluene sulfonic acid) referred to as PTS, is a non-oxidizing organic acid, white needle or powder crystals, soluble in water, alcohols, ethers and other polar solvents. Easy deliquescence, easy to make wood, cotton fabric dehydration and carbonization, insoluble in benzene and toluene. generating p-cresol when alkali fusion. Commonly, p-toluenesulfonic acid-monohydrate (TsOHH2O) or tetrahydrate (TsOH4H2O) is preferred.
Preparation of methyl p-cresol acid in industry is by using concentrated sulfuric acid on the toluene sulfonation of p-toluenesulfonic acid. The preparated p-toluenesulfonic acid often contains benzene sulfonic acid and sulfuric acid impurities, can be purified in recrystallization of concentrated hydrochloric acid, azeotropic drying.
p-toluene sulfonic acid is widely used as catalyst agent in the synthesis of pharmaceuticals, pesticides, polymerization stabilizer and organic synthesis (esters, etc.), paint intermediates and resin curing agent. And it is also the commonly used acid catalyst in organic synthesis. It is neutralized with sodium hydroxide and then obtains sodium p-toluene sulfonate, and react with phosphorus pentachloride, can obtains p-toluenesulfonyl chloride. The latter used in the nucleophilic substitution reaction, also used as alcohol hydroxyl protective group. p-CH3C6H4SO3Na + PCl5 →p-CH3C6H4SO2Cl.
The use of p-toluenesulfonic acid also catalyzes the protection of dihydrofuran on the alcohol, carboxylic acid esterification, transesterification reaction, making the aldehyde generate acetal.



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017


1.1 GHS Product identifier

Product name toluene-4-sulfonic acid

1.2 Other means of identification

Product number -
Other names Benzenesulfonic acid, 4-methyl-

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

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