Phenolphthalein diphosphate tetrasodium salt

酚酞二磷酸四钠

Also known as: Phenolphthalein bisphosphate tetrasodium salt, 1(3H)-Isobenzofuranone, 3,3-bis[4-(phosphonooxy)phenyl]-, sodium salt, hydrate (1:4:1), EINECS 272-326-3, MFCD00005907, Sodium (3-oxo-1,3-dihydro-2-benzofuran-1,1-diyl)di-4,1-phenylene bis(phosphate) hydrate (4:1:1), tetrasodium [4-[3-oxo-1-(4-phosphonatooxyphenyl)-2-benzofuran-1-yl]phenyl] phosphate dihydrate, Phenolphthalein diphosphate sodium salt

Phenolphthalein diphosphate tetrasodium salt (CAS 68807-90-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H14Na4O11P2 and a molecular weight of 584.225 g/mol. It is also known as Phenolphthalein bisphosphate tetrasodium salt, 1(3H)-Isobenzofuranone, 3,3-bis[4-(phosphonooxy)phenyl]-, sodium salt, hydrate (1:4:1) and EINECS 272-326-3. Key properties include a melting point of 300ºC, a boiling point of 762.1ºC at 760 mmHg and a flash point of 414.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

68807-90-9

Jingsj CID

J-20379-1

Molecular Formula

C₂₀H₁₄Na₄O₁₁P₂

Chinese Name

酚酞二磷酸四钠

Molecular Weight

584.225 g/mol

Category

Organic Acids

Last updated

8/21/2026