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Sulfur Compounds (Thiols, Sulfides, Sulfonates)BiochemistryAvailable on request

Phenylmethanesulphonyl chloride, 99%

Synonyms: a-Toluenesulfonyl chloride · alpha-Toluenesulfonyl chloride · Benzylsulfonyl chloride · Benzenemethanesulfonyl chloride

CAS No.1939-99-7
FormulaC7H7ClO2S
Mol. weight190.65
Catalogue No.VQ-010945
Purity≥99%
HSN29049090

Phenylmethanesulphonyl chloride (CAS 1939-99-7) – organosulfur compound, Biochemistry grade, ≥99%. C7H7ClO2S, MW 190.65. With COA, ships worldwide.

Pack sizesPrice on quotation · bulk available
5 g
25 g
100 g
1 kg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Phenylmethanesulphonyl chloride, 99%

Phenylmethanesulphonyl chloride is an organosulfur compound (Biochemistry grade) carrying the CAS registry number 1939-99-7 with a typical assay of ≥99%. With the molecular formula C7H7ClO2S, it has a molar mass of 190.65 g/mol. The IUPAC name is phenylmethanesulfonyl chloride. Common synonyms include a-Toluenesulfonyl chloride and alpha-Toluenesulfonyl chloride.

The product is provided as a powder. Key physical data: a melting point of 92-94 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Phenylmethanesulphonyl chloride in 5 g, 25 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

  • Organic synthesis
  • API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product namePhenylmethanesulphonyl chloride, 99%
Catalogue No.VQ-010945
CAS Number1939-99-7
IUPAC namephenylmethanesulfonyl chloride
Molecular formulaC7H7ClO2S
Molecular weight190.65 g/mol
Exact mass189.9855
GradeBiochemistry
Purity / assay≥99%
HSN code29049090
InChIKeyOAHKWDDSKCRNFE-UHFFFAOYSA-N
SMILESC1=CC=C(C=C1)CS(=O)(=O)Cl
PubChem CID74740
Physical properties
Physical formPowder
AppearancePowder
Melting point92-94 °C
LogP (XLogP3)1.6
H-bond donors / acceptors0 / 2
TPSA42.5 Ų
UN numberUN 3261
Synonymsa-Toluenesulfonyl chloride, alpha-Toluenesulfonyl chloride, Benzylsulfonyl chloride, Benzenemethanesulfonyl chloride, Benzylsulfochloride, .alpha.-Toluenesulfonyl chloride, Methanesulfonyl chloride, phenyl-, Phenylmethylsulfonyl chloride, Phenyl-Methanesulfonyl Chloride, Toluene-alpha-sulphonyl chloride, benzylsulphonyl chloride, alpha-toluenesulphonyl chloride

Safety & hazard information (GHS)

GHS05 Corrosive
Corrosive

Signal word: Danger

Hazard statements

  • H314Causes severe skin burns and eye damage

Precautionary statements: P260, P264, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P321, P363, 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

Frequently asked questions

What is the CAS number of Phenylmethanesulphonyl chloride, 99%?

The CAS Registry Number of Phenylmethanesulphonyl chloride, 99% is 1939-99-7. It is also known as a-Toluenesulfonyl chloride, alpha-Toluenesulfonyl chloride, Benzylsulfonyl chloride.

What is the molecular formula and molecular weight of Phenylmethanesulphonyl chloride, 99%?

Phenylmethanesulphonyl chloride, 99% has the molecular formula C7H7ClO2S and a molecular weight of 190.65 g/mol. Its IUPAC name is phenylmethanesulfonyl chloride.

Which grade and pack sizes of Phenylmethanesulphonyl chloride, 99% can I order?

We supply Phenylmethanesulphonyl chloride, 99% in Biochemistry (≥99%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Phenylmethanesulphonyl chloride, 99%?

Yes. Every lot of Phenylmethanesulphonyl chloride, 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 Phenylmethanesulphonyl chloride, 99% be shipped internationally?

Yes. Phenylmethanesulphonyl chloride, 99% is classified as hazardous (UN 3261), 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.

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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