Phenolphthalein diphosphate

二磷酸酚酞

Also known as: Phenolphthalein bisphosphate, 1(3H)-Isobenzofuranone, 3,3-bis[4-(phosphonooxy)phenyl]-, 3,3-Bis(4-phosphonooxyphenyl)-1(3H)-isobenzofuranone, 3,3-Bis[4-(phosphonooxy)phenyl]-1(3H)-isobenzofuranone, (3-oxo-1,3-dihydro-2-benzofuran-1,1-diyl)dibenzene-4,1-diyl bis[dihydrogen(phosphate)], [4-[3-oxo-1-(4-phosphonooxyphenyl)-2-benzofuran-1-yl]phenyl] dihydrogen phosphate

Phenolphthalein diphosphate (CAS 2090-82-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H16O10P2 and a molecular weight of 478.28300 g/mol. It is also known as Phenolphthalein bisphosphate, 1(3H)-Isobenzofuranone, 3,3-bis[4-(phosphonooxy)phenyl]- and 3,3-Bis(4-phosphonooxyphenyl)-1(3H)-isobenzofuranone. Key properties include a melting point of 198 °C, a boiling point of 762.1ºC at 760 mmHg, a density of 1.671 g/cm3 and a flash point of 414.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

2090-82-6

Jingsj CID

J-22729-2

Molecular Formula

C₂₀H₁₆O₁₀P₂

Chinese Name

二磷酸酚酞

Molecular Weight

478.28300 g/mol

Category

Organic Acids

Last updated

8/21/2026