3-Thienylmalonic acid

3-噻吩丙二酸

Also known as: 2-thiophen-3-ylpropanedioic acid, 2-(Thiophen-3-yl)malonic acid, 3-Thiophenemalonic acid, thien-3-ylmalonic acid, thiophene-3-malonic acid, thiophen-3-ylpropanedioic acid, Propanedioic acid, 2-(3-thienyl)-, Propanedioic acid, 3-thienyl-, MFCD00005469, EINECS 244-198-9

3-Thienylmalonic acid (CAS 21080-92-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6O4S and a molecular weight of 186.185 g/mol. It is also known as 2-thiophen-3-ylpropanedioic acid, 2-(Thiophen-3-yl)malonic acid and 3-Thiophenemalonic acid. Key properties include a melting point of 139 °C (dec.)(lit.), a boiling point of 396.8±32.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 193.8±25.1 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21080-92-2
Jingsj CID
J-32551-6
Molecular Formula
C7H6O4S
Chinese Name
3-噻吩丙二酸
Molecular Weight
186.185 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point139 °C (dec.)(lit.)
Boiling Point396.8±32.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point193.8±25.1 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 3-Thienylmalonic acid?

The CAS number of 3-Thienylmalonic acid is 21080-92-2.

What are the molecular formula and molecular weight of 3-Thienylmalonic acid?

3-Thienylmalonic acid has molecular formula C7H6O4S and molecular weight 186.185 g/mol.

Is 3-Thienylmalonic acid hazardous?

3-Thienylmalonic acid 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. "3-Thienylmalonic acid (CAS 21080-92-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32551-6 (accessed 2026-10-22).

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