C6H5ClO2S
176.62 g/mol
Industrial ChemicalDanger
BENZENESULFONYL CHLORIDE
CAS98-09-9EC202-636-6
Category
Industrial Chemical
Compound Class
Other
Primary Use
Chemical intermediate for sulfonamides and esters
Benzenesulfonyl chloride is an organosulfur compound that appears as a colorless solid and dissolves in organic solvents. It is primarily used as a chemical intermediate to prepare sulfonamides and sulfonate esters through reactions with amines and alcohols.
Preparation of sulfonamidesPreparation of sulfonate esters
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Benzenesulfonic acid
CAS98-11-3
Chemical intermediate and catalyst
ReferenceSame Category
Phenyltrichlorosilane
CAS98-13-5
Monomer for silicone polymers and resins
ReferenceSame Category
3-Chlorobenzotrifluoride
CAS98-15-7
Industrial chemical intermediate
ReferenceSame Category
4-tert-butylcatechol
CAS98-29-3
polymerization inhibitor
Safety Reference
Danger
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H318Causes serious eye damage
H319Causes serious eye irritation
H332Harmful if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H371May cause damage to organs
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for BENZENESULFONYL CHLORIDE (CAS 98-09-9) is 2904.99.
HS code (international, 6-digit)
2904.99
EU CN code (8-digit)
2904 99 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
benzenesulfonyl chloride
InChIKey
CSKNSYBAZOQPLR-UHFFFAOYSA-N
SMILES
C1=CC=C(C=C1)S(=O)(=O)Cl
Synonyms (37)
- 4-benzenesulfonyl chloride
- BENZENESULFONYL CHLORIDE
- BENZENESULFONYL CHLORIDE KIT
- BSC-refine D
- Benezenesulfochloride
- Benzene sulfochloride
- Benzene sulfonechloride
- Benzenesulfon chloride
- Benzenesulfonic chloride
- Benzenesulfonic(acid)chloride
- Benzenesulphonyl chloride
- Benzenosulfochlorek
- Benzenosulfochlorek [Polish]
- Benzenosulfochloride
- Benzenosulphochloride
- Benzolsulfochloride
- Phenylsulfonyl chloride
- benzene-1-sulfonyl chloride
- benzenesuIfonyl chloride
- benzenesulfonoyl chloride
- benzenesulfonyichloride
- benzenesulfonyl chlorde
- benzenesulfonyl choride
- benzenesulfonyl cloride
- benzenesulonyl chloride
- benzensulfonyl chloride
- benzolsulfonylchlorid
- bezenesulfonyl chloride
- m-benzenesulfonyl chloride
- phenylsufonyl chloride
- phenylsulfonic acid chloride
- phenylsulphonyl chloride
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