C12H10O4S
250.27 g/mol
Industrial ChemicalDanger
4,4'-Sulfonyldiphenol
CAS80-09-1EC201-250-5
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
intermediate for epoxy resins and thermal paper developer
4,4'-Sulfonyldiphenol, commonly known as Bisphenol S, is an organic compound featuring two phenol groups connected by a sulfonyl group. It is primarily significant as an intermediate in the production of epoxy resins and as a developer in thermal paper.
intermediate for epoxy resinsthermal paper developer
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.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 80-09-1
Related Compounds
ReferenceSame Category
Dichlorodiphenylsilane
CAS80-10-4
Intermediate for silicone production
ReferenceSame Category
Cumene hydroperoxide
CAS80-15-9
Production of acetone and phenol
ReferenceSame Category
Methyl besylate
CAS80-18-2
chemical intermediate
ReferenceSame Category
Dicumyl peroxide
CAS80-43-3
Vulcanizing agent and crosslinking agent
Referencesame scaffold
2,4'-dihydroxydiphenyl sulfone
CAS5397-34-2
sulfone monomer for polymer synthesis
Referencesame scaffold
BPSIP compound
CAS95235-30-6
thermal paper developer
Referencesame scaffold
4,4'-dichlorodiphenyl sulfone
CAS80-07-9
pharmaceutical intermediate
Referencesame scaffold
Dapsone
CAS80-08-0
pharmaceutical raw material for antibiotic and anti-inflammatory applications
Safety Reference
Danger
H360May damage fertility or the unborn child
H371May cause damage to organs
H373May cause damage to organs through prolonged or repeated exposure
H402Harmful to aquatic life
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for 4,4'-Sulfonyldiphenol (CAS 80-09-1) 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
4-(4-hydroxyphenyl)sulfonylphenol
InChIKey
VPWNQTHUCYMVMZ-UHFFFAOYSA-N
SMILES
C1=CC(=CC=C1O)S(=O)(=O)C2=CC=C(C=C2)O
Synonyms (30)
- 6JD
- 4,4'-Bisphenol S
- 4,4'-Sulfonylbisphenol
- 4,4'-Sulfonyldiphenol
- 4,4'-Sulphonyldiphenol
- 4-Hydroxyphenyl sulfone
- BPS 1
- Bis(4-hydroxyphenyl) sulfone
- Bis(p-hydroxyphenyl) sulfone
- Bisphenol S
- Bisphenol S (4,4')
- DHDPhS
- Diphone C
- PHENOL, 4,4'-SULFONYLDI-
- Phenol, 4,4'-sulfonylbis-
- Phenol,4'-sulfonylbis-
- Sulphonylbisphenol
- bis(4-hydroxylphenyl) sulfone
- di-(4-Hydroxyphenyl)sulfone