Bisphenol S

Bisphenol S
Names
	Preferred IUPAC name 4,4′-Sulfonyldiphenol
	Other names BPS, 4,4′-sulfonylbisphenol,; Bis(4-hydroxyphenyl)sulfone
Identifiers
CAS Number	80-09-1 ;
3D model (JSmol)	Interactive image; Interactive image;
ChEBI	CHEBI:34372;
ChEMBL	ChEMBL384441 ;
ChemSpider	6374 ;
ECHA InfoCard	100.001.137
EC Number	201-250-5;
KEGG	C14216 ;
PubChem CID	6626;
UNII	3OX4RR782R ;
CompTox Dashboard (EPA)	DTXSID3022409 ;
	InChI InChI=1S/C12H10O4S/c13-9-1-5-11(6-2-9)17(15,16)12-7-3-10(14)4-8-12/h1-8,13-14H Key: VPWNQTHUCYMVMZ-UHFFFAOYSA-N ; 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 Key: VPWNQTHUCYMVMZ-UHFFFAOYAO;
	SMILES O=S(=O)(c1ccc(O)cc1)c2ccc(O)cc2; c1cc(ccc1O)S(=O)(=O)c2ccc(cc2)O;
Properties
Chemical formula	C12H10O4S
Molar mass	250.27 g·mol−1
Appearance	White colorless solid; forms needle shaped crystals in water
Density	1.3663 g/cm3
Melting point	245 to 250 °C (473 to 482 °F; 518 to 523 K)
Solubility in water	1100 mg/L
Solubility	Soluble in ethanol
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319, H361
Precautionary statements	P201, P202, P264, P280, P281, P305+P351+P338, P308+P313, P337+P313, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Bisphenol S (BPS, dioxydiphenylsulfone) is an organic compound with the formula (HOC₆H₄)₂SO₂. It has two phenol functional groups on either side of a sulfonyl group. It is commonly used in curing fast-drying epoxy resin adhesives. It is classified as a bisphenol, and a close molecular analog of bisphenol A (BPA). BPS differs from BPA in possessing a sulfone group (SO₂) as the central linker in the molecule instead of the dimethylmethylene group (C(CH₃)₂) of bisphenol A.