C12H8Cl2O2S
287.2 g/mol
Pharmaceutical IntermediateWarning
4,4'-DICHLORODIPHENYL SULFONE
CAS80-07-9EC201-247-9
Category
Pharmaceutical Intermediate
Compound Class
Aromatic
Primary Use
Pharmaceutical Intermediate
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.
intermediate for dapsone synthesiscomponent in high-temperature plasticsepoxy 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.
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Related Compounds
ReferenceSame Category
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ReferenceSame Category
Tri-O-benzyl-D-galactal
CAS80040-79-5
pharmaceutical intermediate
Referencesame scaffold
Dapsone
CAS80-08-0
pharmaceutical raw material for antibiotic and anti-inflammatory applications
Referencesame scaffold
4,4'-sulfonyldiphenol
CAS80-09-1
intermediate for epoxy resins and thermal paper developer
Referencesame scaffold
BPSIP compound
CAS95235-30-6
thermal paper developer
Referencesame scaffold
3,3'-Diamino-4,4'-dihydroxydiphenyl sulfone
CAS7545-50-8
pharmaceutical intermediate
Safety Reference
Warning
H319Causes serious eye irritation
H411Toxic to aquatic life with long lasting effects
Regulatory Compliance1
- EU REACH SVHCEURegulation
Customs Tariff Classification
The international HS code for 4,4'-DICHLORODIPHENYL SULFONE (CAS 80-07-9) is 2930.90.
HS code (international, 6-digit)
2930.90
EU CN code (8-digit)
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.
Identifiers
IUPAC Name
1-chloro-4-(4-chlorophenyl)sulfonylbenzene
InChIKey
GPAPPPVRLPGFEQ-UHFFFAOYSA-N
SMILES
C1=CC(=CC=C1S(=O)(=O)C2=CC=C(C=C2)Cl)Cl
Synonyms (22)
- 4,4'-DICHLORODIPHENYL SULFONE
- 4,4-dichlorophenylsulfone
- 4-Chlorophenyl sulfone
- Bis(4-chlorophenyl) sulfone
- Bis(4-chlorophenyl)sulphone
- Bis(p-chlorophenyl) sulfone
- Bisphenol Impurity 15
- Di-p-chlorophenyl sulfone
- Sulfone, bis(p-chlorophenyl)
- bis(para-chlorophenyl)sulfone
- p,p'-Dichlorodiphenyl sulfone
- p-Chlorophenyl sulfone
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