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2,5-Dimethylbenzenesulfonic acid dihydrate

CAS No.
609-54-1
Chemical Name:
2,5-Dimethylbenzenesulfonic acid dihydrate
Synonyms
(CH3)2C6H3SO3H 2H2O;2,5-Dimethylbenzenes;P-XYLENESULFONIC ACID;XYLENOLSULFONIC ACID 65%;P-XYLENE-2-SULFONIC ACID;P-TOLUENE-O-SULFONIC ACID;p-xylene-2-sulphonic acid;p-Xylene-2-sulfonic Acid 2,5-dimethyl-benzenesulfonicaci;2,5-DIMETHYLBENZENESULFONIC ACID
CBNumber:
CB0338729
Molecular Formula:
C8H10O3S
Molecular Weight:
186.23
MDL Number:
MFCD00064858
MOL File:
609-54-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 17:40:58

2,5-Dimethylbenzenesulfonic acid dihydrate Properties

Melting point 86°C
Boiling point 290.72°C (rough estimate)
Density 1.3286 (rough estimate)
refractive index 1.5081 (estimate)
storage temp. 2-8°C
Water Solubility Soluble in water
pka -0.47±0.30(Predicted)
form powder to crystal
color White to Light yellow to Light red
Sensitive Hygroscopic
InChI InChI=1S/C8H10O3S/c1-6-3-4-7(2)8(5-6)12(9,10)11/h3-5H,1-2H3,(H,9,10,11)
InChIKey IRLYGRLEBKCYPY-UHFFFAOYSA-N
SMILES C1(S(O)(=O)=O)=CC(C)=CC=C1C
CAS DataBase Reference 609-54-1(CAS DataBase Reference)
FDA UNII L1SEA5QNP9
EPA Substance Registry System Benzenesulfonic acid, 2,5-dimethyl- (609-54-1)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352-P305+P351+P338-P332+P313-P337+P313
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  36/38
Safety Statements  26
WGK Germany  3
TSCA  TSCA listed
HS Code  2904.10.3700
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
NFPA 704
0
1 0

2,5-Dimethylbenzenesulfonic acid dihydrate price More Price(20)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich X1376 p-Xylene-2-sulfonic acid hydrate ≥98% 609-54-1 25g $113 2025-07-31 Buy
TCI Chemical D0681 p-Xylene-2-sulfonic Acid Hydrate >98.0%(HPLC)(T) 609-54-1 25g $37 2026-04-30 Buy
TCI Chemical D0681 p-Xylene-2-sulfonic Acid Hydrate >98.0%(HPLC)(T) 609-54-1 100g $143 2026-04-30 Buy
Matrix Scientific 209119 2,5-Dimethylbenzenesulfonic acid hydrate 609-54-1 25.00g $114 2026-05-18 Buy
Synthonix D63113 2,5-Dimethylbenzenesulfonic acid >98% 609-54-1 25g $112 2026-05-06 Buy
Product number Packaging Price Buy
X1376 25g $113 Buy
D0681 25g $37 Buy
D0681 100g $143 Buy
209119 25.00g $114 Buy
D63113 25g $112 Buy

2,5-Dimethylbenzenesulfonic acid dihydrate Chemical Properties,Uses,Production

Uses

Reagent for serum cholesterol determination.

Production Methods

2,5-Dimethylbenzenesulfonic acid dihydrate is obtained by sulfonating p-xylene with 93% sulfuric acid and removing the water by distillation.

2,5-Dimethylbenzenesulfonic acid dihydrate Preparation Products And Raw materials

2,5-Dimethylbenzenesulfonic acid dihydrate Suppliers

Global( 112)Suppliers
Supplier Tel Email Country ProdList Advantage
Hangzhou Changjiu Pharmaceutical Technology Co. , Ltd. 18918890396; 18918890396 49087067@qq.com China 53 58
Shanghai Boyle Chemical Co., Ltd. 021-50182298 021-50180596 sales@boylechem.com China 2202 55
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Nanjing Datang Chemical Co., Ltd 025-85431992 13951889900 vip@chemdatang.com China 100 66
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64

View Lastest Price from 2,5-Dimethylbenzenesulfonic acid dihydrate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,5-Dimethylbenzenesulfonic acid dihydrate pictures 2025-04-04 2,5-Dimethylbenzenesulfonic acid dihydrate
609-54-1
1KG 98% 1ton Henan Aochuang Chemical Co.,Ltd.
2,5-Dimethylbenzenesulfonic acid dihydrate pictures 2021-08-12 2,5-Dimethylbenzenesulfonic acid dihydrate
609-54-1
$10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
2,5-Dimethylbenzenesulfonic acid dihydrate pictures 2019-07-06 2,5-Dimethylbenzenesulfonic acid dihydrate
609-54-1
$1.00 1KG 98% 150KG Career Henan Chemical Co
P-TOLUENE-O-SULFONIC ACID P-XYLENE-2-SULFONIC ACID P-XYLENESULFONIC ACID 2,5-dimethyl-benzenesulfonicaci 2,5-DIMETHYLBENZENESULFONIC ACID p-xylene-2-sulphonic acid XYLENOLSULFONIC ACID 65% 2,5-Dimethylbenzenesulfonic acid dihydrate (CH3)2C6H3SO3H 2H2O 2,5-DimethylbenzensulfonicAcid Dihydrate 2,5-Dimethylbenzenes p-Xylene-2-sulfonic Acid  p-Xylene-2-sulfonic Acid Hydrate p-Xylene-2-sulfonic Acid Hydrate> Benzenesulfonic acid, 2,5-dimethyl- 609-54-1 609-54-7 Building Blocks Organic Building Blocks Sulfonic/Sulfinic Acids Sulfur Compounds Building Blocks Chemical Synthesis Organic Building Blocks Sulfonic/Sulfinic Acids Sulfur Compounds Industrial/Fine Chemicals