2-(Acetylthio)succinic anhydride

S-乙酰巯基丁二酸酐

Also known as: S-(2,5-dioxooxolan-3-yl) ethanethioate, S-Acetylmercaptosuccinic anhydride, 2-acetylthiosuccinic anhydride, Acetylmercaptosuccinic anhydride, S-Acetylmercaptosuccinic acid anhydride

2-(Acetylthio)succinic anhydride (CAS 6953-60-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H6O4S and a molecular weight of 174.174 g/mol. It is also known as S-(2,5-dioxooxolan-3-yl) ethanethioate, S-Acetylmercaptosuccinic anhydride and 2-acetylthiosuccinic anhydride. Key properties include a melting point of 83-86 °C(lit.), a boiling point of 354.3±31.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 188.3±12.9 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6953-60-2
Jingsj CID
J-33934-2
Molecular Formula
C6H6O4S
Chinese Name
S-乙酰巯基丁二酸酐
Molecular Weight
174.174 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point83-86 °C(lit.)
Boiling Point354.3±31.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point188.3±12.9 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-(Acetylthio)succinic anhydride?

The CAS number of 2-(Acetylthio)succinic anhydride is 6953-60-2.

What are the molecular formula and molecular weight of 2-(Acetylthio)succinic anhydride?

2-(Acetylthio)succinic anhydride has molecular formula C6H6O4S and molecular weight 174.174 g/mol.

Is 2-(Acetylthio)succinic anhydride hazardous?

2-(Acetylthio)succinic anhydride has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2-(Acetylthio)succinic anhydride (CAS 6953-60-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33934-2 (accessed 2026-10-22).

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