4,4'-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt hydrate

4,4'-(苯基磷烯)二(苯磺酸)二钾盐水合物

Also known as: Dipotassium bis(p-sulfonatophenyl)phenylphosphine hydrate, Bis(p-sulfonatophenyl)phenylphosphine dipotassium salt hydrate, 4,4'-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt, Potassium 4,4'-(phenylphosphinediyl)dibenzenesulfonate hydrate, MFCD01321353

4,4'-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt hydrate (CAS 308103-66-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H15K2O7PS2 and a molecular weight of 516.60800 g/mol. It is also known as Dipotassium bis(p-sulfonatophenyl)phenylphosphine hydrate, Bis(p-sulfonatophenyl)phenylphosphine dipotassium salt hydrate and 4,4'-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt. Key property: a melting point of 370ºC (dec.)(lit.). GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

308103-66-4

Jingsj CID

J-12523-3

Molecular Formula

C₁₈H₁₅K₂O₇PS₂

Chinese Name

4,4'-(苯基磷烯)二(苯磺酸)二钾盐水合物

Molecular Weight

516.60800 g/mol

Category

Organic Acids

Last updated

8/21/2026