p-Toluene sulphonic acid, GR 99%+

Name: p-Toluene sulphonic acid, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-010927

About p-Toluene sulphonic acid, GR 99%+

Vaqora Chemicals supplies p-Toluene sulphonic acid (AR grade), an organosulfur compound registered under CAS number 6192-52-5 at a purity of ≥99%. The compound has the formula C7H10O4S, corresponding to a molecular weight of 190.22 g/mol. Systematically, it is named 4-methylbenzenesulfonic acid. Hydrate. Common synonyms include 4-methylbenzenesulfonic acid monohydrate and 4-methylbenzene-1-sulfonic acid hydrate.

The material typically appears as a white powder. Key physical data: a melting point of 103-106 °C and a density of 1.24. Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for organic synthesis and API synthesis. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 100 g, 500 g, 5 kg and 4 x 25 kg packs, p-Toluene sulphonic acid is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	p-Toluene sulphonic acid, GR 99%+
Catalogue No.	VQ-010927
CAS Number	6192-52-5
IUPAC name	4-methylbenzenesulfonic acid;hydrate
Molecular formula	C₇H₁₀O₄S
Molecular weight	190.22 g/mol
Exact mass	190.03
Grade	AR
Purity / assay	≥99%
HSN code	29041090
InChIKey	KJIFKLIQANRMOU-UHFFFAOYSA-N
SMILES	CC1=CC=C(C=C1)S(=O)(=O)O.O
PubChem CID	521998

Physical properties
Physical form	Powder
Appearance	White powder
Melting point	103-106 °C
Density	1.24
H-bond donors / acceptors	2 / 4
TPSA	63.8 Å²
UN number	UN 2585
Synonyms	4-methylbenzenesulfonic acid monohydrate, 4-methylbenzene-1-sulfonic acid hydrate, p-Toluenesulfonic acid monohydrate, 4-methylbenzenesulfonic acid hydrate, Benzenesulfonic acid, 4-methyl-, monohydrate, 4-toluenesulfonic acid monohydrate, p-Toluenesulphonic acid monohydrate, p-Toluene sulfonic acid monohydrate, para-toluenesulfonic acid monohydrate, p-toluenesulfonic acid hydrate, Toluene sulfonic acid, 4-methylbenzenesulphonic acid hydrate

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P260, P261, P264, P264 + P265, P271, P280, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P317, P319, P321, P332 + P317, P337 + P317, P362 + P364, P363, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 6192-52-5

Reference Standard

Lisinopril EP Impurity B (Monohydrate Salt)

CAS: 6192-52-5
Formula: C₇H₁₀O₄S
MW: 190.22 g/mol

VQ-006491

Synthesis

p-Toluene sulphonic acid, 98%

CAS: 6192-52-5
Formula: C₇H₁₀O₄S
MW: 190.22 g/mol

VQ-010926

p-Toluene sulphonic acid, monohydrate, 99.5%

CAS: 6192-52-5
Formula: C₇H₁₀O₄S
MW: 190.22 g/mol

VQ-010928

Frequently asked questions

What is the CAS number of p-Toluene sulphonic acid, GR 99%+?

The CAS Registry Number of p-Toluene sulphonic acid, GR 99%+ is 6192-52-5. It is also known as 4-methylbenzenesulfonic acid monohydrate, 4-methylbenzene-1-sulfonic acid hydrate, p-Toluenesulfonic acid monohydrate.

What is the molecular formula and molecular weight of p-Toluene sulphonic acid, GR 99%+?

p-Toluene sulphonic acid, GR 99%+ has the molecular formula C7H10O4S and a molecular weight of 190.22 g/mol.

Which grade and pack sizes of p-Toluene sulphonic acid, GR 99%+ can I order?

We supply p-Toluene sulphonic acid, GR 99%+ in AR (≥99%) grade, in 100 g, 500 g, 5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with p-Toluene sulphonic acid, GR 99%+?

Yes. Every lot of p-Toluene sulphonic acid, GR 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can p-Toluene sulphonic acid, GR 99%+ be shipped internationally?

Yes. p-Toluene sulphonic acid, GR 99%+ is classified as hazardous (UN 2585), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.