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toluene-4-sulfonic acid

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Origin: China

Cas No: 104-15-4

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 104-15-4 Formula: C7H8O3S Molecular Weight: 172.20200

Description

p-Toluenesulfonic acid (PTSA or pTsOH) or tosylic acid (TsOH) is an organic compound with the formula CH3C6H4SO3H. It is a white solid that is soluble in water, alcohols, and other polar organic solvents. The CH3C6H4SO2– group is known as the tosyl group and is often abbreviated as Ts or Tos. Most often, TsOH refers to the monohydrate, TsOH.H2O.
As with other sulfonic acids, TsOH is a strong organic acid. It is about one million times stronger than benzoic acid. It is one of the few strong acids that is solid and, hence, conveniently weighed. Also, unlike some strong mineral acids (especially nitric acid, sulfuric acid, and perchloric acid), TsOH is non-oxidizing.

Basic Info

Chemical Name	toluene-4-sulfonic acid
Synonyms	p-Toluenesulfonic Acid; Benzenesulfonic acid, 4-methyl-; 4-Methylbenzenesulfonic acid;
CAS No.	104-15-4
Molecular Formula	C7H8O3S
Molecular Weight	172.20200
PSA	62.75000
LogP	2.32250

Properties

Appearance & Physical State	White crystals
Density	1.07
Boiling Point	116ºC
Melting Point	106-107ºC
Flash Point	41ºC
Refractive Index	1.3825-1.3845
Water Solubility	soluble
Stability	Normally stable; unstable at high temperature and pressure.
Storage Condition	Flammables area

Safety Info

Hazard Class	8
Safety Statements	S23-S26-S45
HS Code	2904909090
Packing Group	III
RIDADR	2585
Risk Statements	R10; R34
Hazard Codes	C

Synthesis Route

2-Fluorphenyl-tosylat→2-Fluorophenol+toluene-4-sulfonic acid
2,2,2-trifluoroethanol+p-Toluenesulfonyl chloride→2,2,2-Trifluoroethyl p-toluenesulfonate+toluene-4-sulfonic acid
Methanol+(2-oxo-1,2-diphenylethyl) 4-methylbenzenesulfonate→BENZOIN METHYL ETHER+toluene-4-sulfonic acid

Precursor

(2-benzamidophenyl) 4-methylbenzenesulfonate
3-(4-{[3-(hexahydro-1H-azepin-1-yl)propyl]oxy}phenyl)-1-propanol
p-Toluenesulfonyl chloride
toluene-4-sulfonic acid 2-acetylamino-phenyl ester

Downstream Product

oct-1-ene
2-Octene, cis-
trans-2-Octene
4-methylbenzenesulfonic acid,octan-2-ol

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