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2-Toluenesulfonic acid

2-Toluenesulfonic acid structure

CAS No.: 88-20-0

Chemical Name:: 2-Toluenesulfonic acid

Synonyms: O-TOLUENESULFONIC ACID;toluene-2-sulphonic acid;Ortho toluene sulfonic acid;Sorafenib Impurity 47;2-Toluenesulfonic acid;2-methylbenzenesulfonylacid;o-Toluenesulfonic acid (8CI);o-methylbenzenesulfonic acid;2-methyl-benzenesulfonic aci;2-Methyl-Benzenesulfonic Acid

CBNumber:: CB9754544

Molecular Formula:: C7H8O3S

Molecular Weight:: 172.2

MDL Number:: MFCD00069442

MOL File:: 88-20-0.mol

MSDS File:: SDS

Last updated:2026-09-12 18:56:34

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2-Toluenesulfonic acid Properties

Melting point	67.5°C
Boiling point	272.52°C (rough estimate)
Density	1.3692 (rough estimate)
refractive index	1.5151 (estimate)
storage temp.	Store at room temperature, keep dry and cool
pka	-0.53±0.15(Predicted)
Appearance	White to off-white Solid
Water Solubility	488.9g/L(32.5 ºC)
InChI	InChI=1S/C7H8O3S/c1-6-4-2-3-5-7(6)11(8,9)10/h2-5H,1H3,(H,8,9,10)
InChIKey	LBLYYCQCTBFVLH-UHFFFAOYSA-N
SMILES	C1(S(O)(=O)=O)=CC=CC=C1C
FDA UNII	4ZHF5BMF7N
EPA Substance Registry System	Benzenesulfonic acid, 2-methyl- (88-20-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS05
Signal word	Danger
Hazard statements	H314
Precautionary statements	P280-P305+P351+P338-P310
TSCA	TSCA listed

2-Toluenesulfonic acid price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Usbiological	290808	2-Toluenesulfonic acid Asreported	88-20-0	250mg	$425	2026-06-03	Buy
Usbiological	290808	2-Toluenesulfonic acid Asreported	88-20-0	500mg	$602	2026-06-03	Buy
Usbiological	290808	2-Toluenesulfonic acid Asreported	88-20-0	1g	$842	2026-06-03	Buy
Usbiological	290808	2-Toluenesulfonic acid Asreported	88-20-0	2g	$1230	2026-06-03	Buy
Usbiological	290808	2-Toluenesulfonic acid Asreported	88-20-0	5g	$2141	2026-06-03	Buy

Product number	Packaging	Price	Buy
290808	250mg	$425	Buy
290808	500mg	$602	Buy
290808	1g	$842	Buy
290808	2g	$1230	Buy
290808	5g	$2141	Buy

2-Toluenesulfonic acid Chemical Properties,Uses,Production

Uses

Natural gas hydrate promotion capabilities of the hydrotope o-Toluenesulfonic Acid as an additive was investigated.

Definition

ChEBI: 2-Methylbenzenesulfonic acid is an organosulfur compound and a sulfonic acid derivative.

2-Toluenesulfonic acid synthesis

Synthesis of 2-Toluenesulfonic acid from Benzenesulfonic acid, 2,4,6-triethyl- and 1,2-Dichlorobenzene

2-Toluenesulfonic acid Preparation Products And Raw materials

Raw materials

Benzenesulfonic acid, 2,4,6-triethyl- 5-Bromo-2-methylbenzene-1-sulfonic acid 2-methylbenzenesulfinic acid o-Toluenesulfonamide p-Toluenesulfonic acid

o-Toluenesulfonyl chloride 1,2-Dichlorobenzene Toluene

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Preparation Products

4,4'-Diamino-2,2'-stilbenedisulfonic acid 3-Methylbenzenesulfonic Acid Azuleno[4,5-b]furan-2,8(3H,4H)-dione,octahydro-4-hydroxy-9-methyl-3,6-bis(methylene)-, (3aR,4S,6aR,9S,9aR,9bR)- 4-Nitrotoluene-2-sulfonic Acid

2-Toluenesulfonic acid Suppliers

Global( 96)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Jiaxing Xinrui Pharmaceutical Technology Co., Ltd.	0573-82750556 13616838856	1062740657@qq.com	China	109	58
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
Beijing HwrkChemical Technology Co., Ltd	89508211 18501085097	sales.bj@hwrkchemical.com	China	9407	55
Shanghai Sunway Pharmaceutical Technology Co., Ltd	13761987713	hxzheng@sunwaypharm.cn	China	8663	57
Wuhan Haizheng Industry & Trade Development Co. Ltd	027-8866 0053/88660577/88660578		China	1070	55
Amber MolTech LLC	086-010-62176588	amber@jyamber.com	China	10150	56
Nanjing Norris-Pharm Technology Co., Ltd	13901585132	sales@norris-pharm.com	China	8869	55
UHN Shanghai Research & Development Co., Ltd.	021-58958002 18930822973	sales@uhnshanghai.com	China	997	58
Shanghai Raise Chemical Technology Co.,Ltd	+86-021-50935922		China	7854	55
Shanghai BeiZhuo Biotech Co., Ltd.	021-61119791,13386096464	bzswkf@foxmail.com	China	3916	50

Supplier	Advantage
Jiaxing Xinrui Pharmaceutical Technology Co., Ltd.	58
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
Beijing HwrkChemical Technology Co., Ltd	55
Shanghai Sunway Pharmaceutical Technology Co., Ltd	57
Wuhan Haizheng Industry & Trade Development Co. Ltd	55
Amber MolTech LLC	56
Nanjing Norris-Pharm Technology Co., Ltd	55
UHN Shanghai Research & Development Co., Ltd.	58
Shanghai Raise Chemical Technology Co.,Ltd	55
Shanghai BeiZhuo Biotech Co., Ltd.	50

View Lastest Price from 2-Toluenesulfonic acid manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2022-02-19	2-methylbenzenesulfonic acid 88-20-0		1KG	97.4%	100 tons	Honest Joy Holdings Limited
	2019-12-29	2-Toluenesulfonic acid 88-20-0	$2.00	1KG	≥98%	20 tons	Career Henan Chemical Co

2-methylbenzenesulfonic acid
88-20-0
$0.00
97.4%
Honest Joy Holdings Limited

2-Toluenesulfonic acid
88-20-0
$2.00
≥98%
Career Henan Chemical Co

2-Toluenesulfonic acid Spectrum

2-TOLUENESULFONIC ACID(88-20-0)¹HNMR

88-20-0(2-Toluenesulfonic acid)Related Search:

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Methyl 4-chloropicolinate 2-chloro-1-nitro-3-(trifluoromethyl)benzene 1,4-Benzoquinoneimine 3-Amino-2-chlorobenzotrifluoride 1-(4-chloro-3-(trifluoromethyl)phenyl)urea

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toluene-2-sulphonic acid 2-Methyl-Benzenesulfonic Acid 2-methyl-benzenesulfonic aci o-methylbenzenesulfonic acid 2-Methylbenzene-1-sulfonic acid Sorafenib Impurity 47 Benzenesulfonic acid, 2-methyl- Ortho toluene sulfonic acid o-Toluenesulfonic acid (8CI) O-toluenesulfonic acid (2-methylbenzenesulfonic acid) 2-methylbenzenesulfonylacid O-TOLUENESULFONIC ACID 2-Toluenesulfonic acid 88-20-0 CH3C6H4SO3H