Tech Serve Solutions

p-Toluenesulfonic acid monohydrate

CAS 6192-52-5CH3C6H4SO3H · H2OAcids & Bases

p-Toluenesulfonic acid monohydrate (CAS 6192-52-5), molecular formula CH3C6H4SO3H · H2O, is a high-purity chemical supplied by Tech Serve Solutions for acids & bases applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.

IUPAC
Benzenesulfonic acid, 4-methyl-, monohydrate (9CI) p-Toluenesulfonic acid, monohydrate (8CI) 4-Methylbenzenesulfonic acid monohydrate 4-Toluenesulfonic acid monohydrate Tosic acid monohydrate
Synonyms
Benzenesulfonic acid4-methyl-monohydrate (9CI) p-Toluenesulfonic acidmonohydrate (8CI) 4-Methylbenzenesulfonic acid monohydrate 4-Toluenesulfonic acid monohydrate Tosic acid monohydrate
p-Toluenesulfonic acid monohydrate
AcidsAcids & BasesChemical SynthesisOrganic AcidsSynthetic Reagents
01 /Properties
Molecular weight190.22
Linear formulaCH3C6H4SO3H · H2O
Assay≥98.5%
Vapour density5.9 (vs air)
Impurities tested9.5-11.5% water
Melting point103-106 °C(lit.)
02 /Safety & handling
Harmful / irritant
Harmful / irritant
Warning

Hazard statements

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements

  • P261Avoid breathing dust, fume, gas or vapours
  • P305IF IN EYES
Protective equipmentdust mask type N95 (US), Eyeshields, Faceshields, Gloves
Transport (UN / ADR)UN 2585 8/PG 3
Water hazard class (WGK, DE)1
Hazard codes (EU)Xi
Risk statements (R)36/37/38
Safety statements (S)26
Cation tracesFe: ≤0.01%Na: ≤0.002%heavy metals (as Pb): ≤0.001%
Anion tracessulfate (SO42-): ≤0.3%
Ignition residue≤0.1%

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

03 /Identifiers & registry
CAS number
6192-52-5
MDL number
MFCD00142137
PubChem substance
24865132
Beilstein registry
3568023
04 /Additional specifications
Clarity Of Solnpasses test
05 /Quality & supply

Documentation

Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is p-Toluenesulfonic acid monohydrate?

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p-Toluenesulfonic acid monohydrate (CAS 6192-52-5), molecular formula CH3C6H4SO3H · H2O, is a high-purity chemical supplied by Tech Serve Solutions for acids & bases applications, to USP, BP and EP standards.

What grades of p-Toluenesulfonic acid monohydrate does Tech Serve Solutions supply?

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Tech Serve Solutions supplies p-Toluenesulfonic acid monohydrate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.

What is the CAS number and molecular formula of p-Toluenesulfonic acid monohydrate?

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p-Toluenesulfonic acid monohydrate has CAS number 6192-52-5 and molecular formula CH3C6H4SO3H · H2O. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for p-Toluenesulfonic acid monohydrate?

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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.

Do you provide a Certificate of Analysis (CoA) with each shipment?

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Yes. Every batch of p-Toluenesulfonic acid monohydrate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.

How should p-Toluenesulfonic acid monohydrate be stored?

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Store p-Toluenesulfonic acid monohydrate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.

What is p-Toluenesulfonic acid monohydrate used for?

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p-Toluenesulfonic acid monohydrate is used in acids & bases applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.

How do I request a quote for p-Toluenesulfonic acid monohydrate?

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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.

Need p-Toluenesulfonic acid monohydrate in a specific grade or volume?

Request a quote