meso-2,3-Dimercaptosuccinic acid

内消旋-2,3-二巯基丁二酸

Also known as: Succimer, Dimercaptosuccinic acid, DMSA, meso-2,3-dimercaptosuccinic acid, (2R,3S)-2,3-dimercaptosuccinic acid, (2R,3S)-rel-2,3-Dimercaptosuccinic acid, 2,3-Disulfanylsuccinic acid, 2,3-Dithio-meso-tartaric acid, API Succimer

meso-2,3-Dimercaptosuccinic acid (CAS 304-55-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H6O4S2 and a molecular weight of 182.218 g/mol. It is also known as Succimer, Dimercaptosuccinic acid and DMSA. Key properties include a melting point of 196-198ºC (dec.), a boiling point of 267.6±40.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 115.6±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
304-55-2
Jingsj CID
J-1992099-9
Molecular Formula
C4H6O4S2
Chinese Name
内消旋-2,3-二巯基丁二酸
Molecular Weight
182.218 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point196-198ºC (dec.)
Boiling Point267.6±40.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point115.6±27.3 °C

Frequently Asked Questions

What is the CAS number of meso-2,3-Dimercaptosuccinic acid?

The CAS number of meso-2,3-Dimercaptosuccinic acid is 304-55-2.

What are the molecular formula and molecular weight of meso-2,3-Dimercaptosuccinic acid?

meso-2,3-Dimercaptosuccinic acid has molecular formula C4H6O4S2 and molecular weight 182.218 g/mol.

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

Last updated:

How to cite: Jingsj. "meso-2,3-Dimercaptosuccinic acid (CAS 304-55-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992099-9 (accessed 2026-10-25).

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