2-Phosphonobutane-1,2,4-tricarboxylic acid sodium salt

2-膦酸丁烷-1,2,4-三羧酸钠盐

Also known as: PBTC-4Na, PBTC sodium salt, PBTCNA4, 1,2,4-Butanetricarboxylic acid, 2-phosphono-, sodium salt, 1,2,4-Butanetricarboxylic acid, 2-phosphono-, sodium salt (1:4), 2-Phosphonobutane-1,2,4-tricarboxylic acid tetrasodium salt, Sodium 2-phosphonobutane-1,2,4-tricarboxylate

2-Phosphonobutane-1,2,4-tricarboxylic acid sodium salt (CAS 40372-66-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H7Na4O9P and a molecular weight of 358.05800 g/mol. It is also known as PBTC-4Na, PBTC sodium salt and PBTCNA4. Key properties include a boiling point of 545.2ºC at 760mmHg, a density of 1.835g/cm3 and a flash point of 283.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40372-66-5
Jingsj CID
J-1106806-2
Molecular Formula
C7H7Na4O9P
Chinese Name
2-膦酸丁烷-1,2,4-三羧酸钠盐
Molecular Weight
358.05800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point545.2ºC at 760mmHg
Density1.835g/cm3
Flash Point283.5ºC

Frequently Asked Questions

What is the CAS number of 2-Phosphonobutane-1,2,4-tricarboxylic acid sodium salt?

The CAS number of 2-Phosphonobutane-1,2,4-tricarboxylic acid sodium salt is 40372-66-5.

What are the molecular formula and molecular weight of 2-Phosphonobutane-1,2,4-tricarboxylic acid sodium salt?

2-Phosphonobutane-1,2,4-tricarboxylic acid sodium salt has molecular formula C7H7Na4O9P and molecular weight 358.05800 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Phosphonobutane-1,2,4-tricarboxylic acid sodium salt (CAS 40372-66-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1106806-2 (accessed 2026-10-24).

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