Tetrahydrothiophene-3-carboxylic acid 1,1-dioxide

四氢噻吩-3-羧酸-1,1-二氧

Also known as: 1,1-dioxothiolane-3-carboxylic acid, 1,1-Dioxotetrahydrothiophene-3-carboxylic acid, Tetrahydro-3-thiophenecarboxylic acid 1,1-dioxide, 3-Thiophenecarboxylic acid, tetrahydro-, 1,1-dioxide, 1,1-Dioxo-tetrahydro-1λ6-thiophene-3-carboxylic acid

Tetrahydrothiophene-3-carboxylic acid 1,1-dioxide (CAS 4785-67-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8O4S and a molecular weight of 164.180 g/mol. It is also known as 1,1-dioxothiolane-3-carboxylic acid, 1,1-Dioxotetrahydrothiophene-3-carboxylic acid and Tetrahydro-3-thiophenecarboxylic acid 1,1-dioxide. Key properties include a boiling point of 465.0±38.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 235.0±26.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4785-67-5
Jingsj CID
J-1180908-7
Molecular Formula
C5H8O4S
Chinese Name
四氢噻吩-3-羧酸-1,1-二氧
Molecular Weight
164.180 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point465.0±38.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point235.0±26.8 °C

Frequently Asked Questions

What is the CAS number of Tetrahydrothiophene-3-carboxylic acid 1,1-dioxide?

The CAS number of Tetrahydrothiophene-3-carboxylic acid 1,1-dioxide is 4785-67-5.

What are the molecular formula and molecular weight of Tetrahydrothiophene-3-carboxylic acid 1,1-dioxide?

Tetrahydrothiophene-3-carboxylic acid 1,1-dioxide has molecular formula C5H8O4S and molecular weight 164.180 g/mol.

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

Last updated:

How to cite: Jingsj. "Tetrahydrothiophene-3-carboxylic acid 1,1-dioxide (CAS 4785-67-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1180908-7 (accessed 2026-10-24).

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