Bisphenol S

Bisphenol S
IUPAC name	4,4'-Sulfonyldiphenol
Other names	BPS, 4,4'-sulfonylbisphenol, bis(4-hydroxyphenyl)sulfone
Identifiers
CAS number	80-09-1 Y
PubChem	6626
SMILES	O=S(=O)(c1ccc(O)cc1)c2ccc(O)cc2
InChI	1/C12H10O4S/c13-9-1-5-11(6-2-9)17(15,16)12-7-3-10(14)4-8-12/h1-8,13-14H
InChI key	VPWNQTHUCYMVMZ-UHFFFAOYAO
ChemSpider ID	6374
Properties
Molecular formula	C12H10O4S
Molar mass	250.275 g/mol
Appearance	White colorless solid; forms needle shaped crystals in water
Density	1.3663 g/cm³, solid
Melting point	245 to 250 °C[1]
Solubility in water	insoluble
Solubility	soluble in ethanol
Hazards
R-phrases	36[2]
S-phrases	26[3]
Y (what is this?)  (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Bisphenol S (abbreviated BPS) is an organic compound with the formula (C₆H₄OH)₂SO₂. It has two phenol functional groups on either side of a sulfonyl group. It is commonly used as a reactant in epoxy reactions, and is used in curing fast drying epoxy resin glues.

Synthesis

Bisphenol S is prepared by the reaction of two equivalents of phenol with one equivalent of sulfuric acid.

This reaction can also produce 2,4'-sulfonyldiphenol.

History and use

Bisphenol S is used in curing fast-drying epoxy glues, and as an anti-corrosive. It is also commonly used as a reactant in polymer reactions.

References