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

2-膦酸丁烷-1,2,4-三羧酸

Also known as: PBTC, PBTCA, 2-Phosphono-1,2,4-butanetricarboxylic acid, 2-Phosphonobutane-1,2,4-tricarboxylic acid, 2-Phosphono-1,2,4-butanetricarboxylic acid, 3-Carboxy-3-phosphonohexanedioic acid, 1,2,4-Butanetricarboxylic acid, 2-phosphono-, Butane-1,2,4-tricarboxylic acid 2-phosphonic acid

2-Phosphonobutane-1,2,4-tricarboxylic acid (CAS 37971-36-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H11O9P and a molecular weight of 270.13100 g/mol. It is also known as PBTC, PBTCA and 2-Phosphono-1,2,4-butanetricarboxylic acid. Key properties include a boiling point of 545.2ºC at 760 mmHg, a density of 1.25 (50% aq.) and a flash point of 283.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 37971-36-1
Jingsj CID: J-1993301-6
Molecular Formula: C₇H₁₁O₉P
Chinese Name: 2-膦酸丁烷-1,2,4-三羧酸
Molecular Weight: 270.13100 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	545.2ºC at 760 mmHg
Density	1.25 (50% aq.)
Flash Point	283.5ºC

Frequently Asked Questions

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

The CAS number of 2-Phosphonobutane-1,2,4-tricarboxylic acid is 37971-36-1.

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

2-Phosphonobutane-1,2,4-tricarboxylic acid has molecular formula C7H11O9P and molecular weight 270.13100 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Phosphonobutane-1,2,4-tricarboxylic acid (CAS 37971-36-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993301-6 (accessed 2026-10-24).

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