Phenolphthalein monophosphate disodium salt

酚酞单磷酸二钠盐

Also known as: Phenolphthalein monophosphate, disodium salt, Disodium phenolphthalein monophosphate, 1(3H)-Isobenzofuranone, 3-(4-hydroxyphenyl)-3-[4-(phosphonooxy)phenyl]-, disodium salt, Disodiumphenolphthalein monophosphate, Phenolphthalein monophosphate disodium

Phenolphthalein monophosphate disodium salt (CAS 108321-15-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H13Na2O7P and a molecular weight of 442.26600 g/mol. It is also known as Phenolphthalein monophosphate, disodium salt, Disodium phenolphthalein monophosphate and 1(3H)-Isobenzofuranone, 3-(4-hydroxyphenyl)-3-[4-(phosphonooxy)phenyl]-, disodium salt. Key properties include a boiling point of 664.2ºC at 760 mmHg and a flash point of 355.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
108321-15-9
Jingsj CID
J-1180138-2
Molecular Formula
C20H13Na2O7P
Chinese Name
酚酞单磷酸二钠盐
Molecular Weight
442.26600 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point664.2ºC at 760 mmHg
Flash Point355.5ºC

Frequently Asked Questions

What is the CAS number of Phenolphthalein monophosphate disodium salt?

The CAS number of Phenolphthalein monophosphate disodium salt is 108321-15-9.

What are the molecular formula and molecular weight of Phenolphthalein monophosphate disodium salt?

Phenolphthalein monophosphate disodium salt has molecular formula C20H13Na2O7P and molecular weight 442.26600 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Phenolphthalein monophosphate disodium salt (CAS 108321-15-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1180138-2 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.