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Disodium 2,2,3,3-tetrahydroxybutanedioate

二羟基酒石酸钠

Also known as: Sodium dihydroxytartrate, Disodium tetrahydroxysuccinate, Dihydroxytartaric acid disodium salt, Tetrahydroxysuccinic acid disodium salt, Butanedioic acid, 2,2,3,3-tetrahydroxy-, disodium salt, Disodium 2,2,3,3-tetrahydroxysuccinate, Disodium dihydroxytartrate, EINECS 212-749-2

Disodium 2,2,3,3-tetrahydroxybutanedioate (CAS 866-17-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H4Na2O8 and a molecular weight of 226.04900 g/mol. It is also known as Sodium dihydroxytartrate, Disodium tetrahydroxysuccinate and Dihydroxytartaric acid disodium salt. Key properties include a melting point of 285-288ºC (dec), a boiling point of 514.2ºC at 760mmHg and a flash point of 278.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
866-17-1
Jingsj CID
J-23936-3
Molecular Formula
C4H4Na2O8
Chinese Name
二羟基酒石酸钠
Molecular Weight
226.04900 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point285-288ºC (dec)
Boiling Point514.2ºC at 760mmHg
Flash Point278.9ºC

Frequently Asked Questions

What is the CAS number of Disodium 2,2,3,3-tetrahydroxybutanedioate?

The CAS number of Disodium 2,2,3,3-tetrahydroxybutanedioate is 866-17-1.

What are the molecular formula and molecular weight of Disodium 2,2,3,3-tetrahydroxybutanedioate?

Disodium 2,2,3,3-tetrahydroxybutanedioate has molecular formula C4H4Na2O8 and molecular weight 226.04900 g/mol.

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

Last updated:

How to cite: Jingsj. "Disodium 2,2,3,3-tetrahydroxybutanedioate (CAS 866-17-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23936-3 (accessed 2026-10-23).

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