3332. Diphenyl Sulfone

Nomenclature

CAS number: 127-63-9
1,1′-Sulfonylbisbenzene; phenyl sulfone; sulfobenzide.
C12H10O2S; mol wt 218.27.
C 66.03%, H 4.62%, O 14.66%, S 14.69%.

Description and references

Prepd by sulfonation of benzene with sulfuric acid; formed as a by-product on production of benzenesulfonic acid and benzenesulfonyl chloride.

Chemical structure

Properties

White monoclinic prisms or leaflets, mp 128-129°. bp 378-379°. Insoluble in cold water. Slightly sol in boiling water; sol in hot alcohol, in benzene. LD50 orally in rats: >2 g/kg, Residue Rev. 36, 240 (1971).

Use

Ovicide; acaricide.