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p-Toluenesulfinic acid

p-Toluenesulfinic acid Structure
p-Toluenesulfinic acid structure
CAS No.
536-57-2
Chemical Name:
p-Toluenesulfinic acid
Synonyms
toluenesulfinicacid;P-ToluenesulfinicAci;p-Toluenesulfinic acid;4-TOLUENESULFINIC ACID;P-TOLUENESULPHINIC ACID;toluene-4-sulphinicacid;4-methyl-Benzenesulfinicacid;Benzenesulfinic acid,4-methyl-;p-Toluenesulfinic acid (6CI, 8CI)
CBNumber:
CB0184096
Molecular Formula:
C7H8O2S
Molecular Weight:
156.2
MDL Number:
MFCD00058979
MOL File:
536-57-2.mol
MSDS File:
SDS
Last updated:2026-09-12 18:47:34
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p-Toluenesulfinic acid Properties

Melting point 85°
Boiling point 250.45°C (rough estimate)
Density 1.2474 (rough estimate)
refractive index 1.5248 (estimate)
storage temp. Inert atmosphere,Store in freezer, under -20°C
pka pK1:1.7 (25°C)
Appearance White to off-white Solid
InChI InChI=1S/C7H8O2S/c1-6-2-4-7(5-3-6)10(8)9/h2-5H,1H3,(H,8,9)
InChIKey FXJVNINSOKCNJP-UHFFFAOYSA-N
SMILES C1(S(O)=O)=CC=C(C)C=C1
FDA UNII H3F863QFL6
EPA Substance Registry System Benzenesulfinic acid, 4-methyl- (536-57-2)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P301+P312-P302+P352-P304+P340-P305+P351+P338
RTECS  GZ7260000
TSCA  TSCA listed

p-Toluenesulfinic acid price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth FP30059 p-Toluenesulfinic acid 536-57-2 2000mg $220 2026-06-04 Buy
Biosynth FP30059 p-Toluenesulfinic acid 536-57-2 5000mg $350 2026-06-04 Buy
Biosynth FP30059 p-Toluenesulfinic acid 536-57-2 10000mg $700 2026-06-04 Buy
Activate Scientific AS42885 4-Methylbenzenesulfinic acid 94% 536-57-2 1g $59 2026-06-04 Buy
Activate Scientific AS42885 4-Methylbenzenesulfinic acid 94% 536-57-2 5g $165 2026-06-04 Buy
Product number Packaging Price Buy
FP30059 2000mg $220 Buy
FP30059 5000mg $350 Buy
FP30059 10000mg $700 Buy
AS42885 1g $59 Buy
AS42885 5g $165 Buy

p-Toluenesulfinic acid Chemical Properties,Uses,Production

Uses

p-toluenesulfinic acid is used in preparation of alkyl, vinyl, and allyl sulfones; starting material for the preparation of chiral sulfoxides; mild acid catalyst.

Synthesis Reference(s)

Chemical and Pharmaceutical Bulletin, 35, p. 1770, 1987 DOI: 10.1248/cpb.35.1770

Synthesis

p-toluenesulfinic acid is prepared by isolation of the free acid via acidification of an aqueous solution of the sodium salt has been described; partial conversion to p-Toluenesulfonic Acid frequently accompanies drying of the free acid.

storage

It should be stored in a cool, dry place away from strong oxidizing agents.

p-Toluenesulfinic acid synthesis

824-79-3
536-57-2
Synthesis of p-Toluenesulfinic acid from Sodium p-toluenesulfinate

p-Toluenesulfinic acid Preparation Products And Raw materials

Raw materials

S-Methyl 4-methylbenzenethiosulfonate Bicyclo[2.2.1]heptane, 7,7-dimethoxy- 4-Iodotoluene p-Toluenesulfonic acid n-hexyl ester Benzyl 4-toluenesulfonate
Sodium p-toluenesulfinate N-Methylphenethylamine Methyl p-toluenesulfinate 1-Hexanol Toluene
Tosyl chloride 4-Fluorobenzaldehyde p-Toluenethiol N'-(9H-Fluoren-9-ylidene)-4-methylbenzenesulfonohydrazide Benzene, 1,1'-[1,2-ethanediylbis(sulfonyl)]bis[4-methyl-
9H-Fluoren-9-imine

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Preparation Products

1H-Isoindol-1-one, 3-hydroxy- N-Hydroxy-4-methylbenzenesulfonamide

p-Toluenesulfinic acid Suppliers

Global( 152)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Taijilin Industrial Co., Ltd. 02150630626 17717886015 kate@tajilin.com China 1340 58
Hubei Xingyao Biomedical Technology Co., Ltd 17871673970 63857756@qq.com China 4995 58
Shanghai Hekang Biotechnology Co., Ltd. 17721021104 18939837085 2880152141@qq.com China 1840 55
Quality Control Solutions Ltd. 0755-66853366 13670046396 orders@qcsrm.com China 18188 56
Finetech Industry Limited 027-87465837 19945049750 sales@finetechnology-ind.com China 9331 58
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55
Shanghai HuanChuan Industry Co.,Ltd. 021-61478794 sales@hcshhai.com China 9781 50
Hubei Jusheng Technology Co.,Ltd 027-59599241 18871490274 1400878000@qq.com China 9506 58
Weifang QianJin Fine Chemical Co., Ltd. 18753684562 1577399715@qq.COM China 1772 55
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
Supplier Advantage
Shanghai Taijilin Industrial Co., Ltd. 58
Hubei Xingyao Biomedical Technology Co., Ltd 58
Shanghai Hekang Biotechnology Co., Ltd. 55
Quality Control Solutions Ltd. 56
Finetech Industry Limited 58
Shanghai Macklin Biochemical Co.,Ltd. 55
Shanghai HuanChuan Industry Co.,Ltd. 50
Hubei Jusheng Technology Co.,Ltd 58
Weifang QianJin Fine Chemical Co., Ltd. 55
Shanghai YuanYe Biotechnology Co., Ltd. 60

View Lastest Price from p-Toluenesulfinic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
P-TOLUENESULFINIC ACID pictures 2026-06-30 P-TOLUENESULFINIC ACID
536-57-2
 1kg 99% 10000KGS Shaanxi Dideu New Materials Co. Ltd

p-Toluenesulfinic acid Spectrum

P-TOLUENESULFINIC ACID(536-57-2)1HNMR

536-57-2(p-Toluenesulfinic acid)Related Search:

p-Toluoyl chloride p-Toluic acid p-Toluenesulfonamide Tosyl azide p-Toluenesulfonyl semicarbazide
p-tolyl butyrate toluene-4-sulfonic acid 3-Methanesulfonyl-propyl ester p-Toluenesulfonic acid monohydrate p-Toluenesulfonic acid p-Toluenesulfonyl fluoride
REACTIVE BLACK 5 Acid yellow 76 (c.i. 18850) Acid orange 63 Acid yellow 40 Anthraquinone-2,6-disulfonic acid disodium salt
p-Toluenesulfinic acid sodium salt tetrahydrate (-)-1,4-Di-O-tosyl-2,3-O-isopropylidenethreitol Acid red 114

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4-methyl-Benzenesulfinicacid toluene-4-sulphinicacid toluenesulfinicacid P-TOLUENESULPHINIC ACID 4-TOLUENESULFINIC ACID Benzenesulfinic acid,4-methyl- P-ToluenesulfinicAci p-Toluenesulfinic acid (6CI, 8CI) p-Toluenesulfinic acid 536-57-2 CH3C6H4SO2H Industrial/Fine Chemicals