Pamoic acid disodium salt monohydrate

帕莫酸二钠盐一水合物

Also known as: Disodium pamoate, Disodium 4,4'-methylenebis(3-hydroxy-2-naphthoate), Sodium pamoate, Embonic acid disodium salt, Pamoic acid disodium salt, MFCD00036183, EINECS 229-653-1

Pamoic acid disodium salt monohydrate (CAS 6640-22-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C23H14Na2O6 and a molecular weight of 432.333 g/mol. It is also known as Disodium pamoate, Disodium 4,4'-methylenebis(3-hydroxy-2-naphthoate) and Sodium pamoate. Key properties include a melting point of 300 °C, a boiling point of 642.7ºC at 760 mmHg and a flash point of 356.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6640-22-8
Jingsj CID
J-1990906-4
Molecular Formula
C23H14Na2O6
Chinese Name
帕莫酸二钠盐一水合物
Molecular Weight
432.333 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point300 °C
Boiling Point642.7ºC at 760 mmHg
Flash Point356.5ºC

Frequently Asked Questions

What is the CAS number of Pamoic acid disodium salt monohydrate?

The CAS number of Pamoic acid disodium salt monohydrate is 6640-22-8.

What are the molecular formula and molecular weight of Pamoic acid disodium salt monohydrate?

Pamoic acid disodium salt monohydrate has molecular formula C23H14Na2O6 and molecular weight 432.333 g/mol.

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

Last updated:

How to cite: Jingsj. "Pamoic acid disodium salt monohydrate (CAS 6640-22-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990906-4 (accessed 2026-10-24).

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