Safety Reference
Warning
H319Causes serious eye irritation
H411Toxic to aquatic life with long lasting effects
Regulatory Compliance1
Sourcing 4,4'-DICHLORODIPHENYL SULFONE?
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2-(Ethanesulfonyl)-5-methoxyaniline
pharmaceutical intermediate
Sourcing 4,4'-DICHLORODIPHENYL SULFONE?
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4,4'-Dichlorodiphenyl sulfone is a chemical compound with a biphenyl sulfone core, bearing two chlorine atoms. It is primarily recognized as a key intermediate in the manufacture of dapsone, an antileprotic pharmaceutical agent, and is also used in high-temperature plastics and as an epoxy hardener.
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.
The international HS code for 4,4'-DICHLORODIPHENYL SULFONE (CAS 80-07-9) is 2930.90.
2930.90
2930 90 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
1-chloro-4-(4-chlorophenyl)sulfonylbenzene
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