4-(5-Chloro-2-thienyl)-4-oxobutyric acid

4-(5-氯-2-噻吩)-4-氧丁酸

Also known as: 5-Chloro-γ-oxo-2-thiophenebutanoic acid, 4-(5-chlorothiophen-2-yl)-4-oxobutanoic acid, 4-(5-chloro-2-thiophenyl)-4-oxobutanoic acid, 4-(5-chloro-thiophen-2-yl)-4-oxo-butyric acid

4-(5-Chloro-2-thienyl)-4-oxobutyric acid (CAS 70685-06-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7ClO3S and a molecular weight of 218.65700 g/mol. It is also known as 5-Chloro-γ-oxo-2-thiophenebutanoic acid, 4-(5-chlorothiophen-2-yl)-4-oxobutanoic acid and 4-(5-chloro-2-thiophenyl)-4-oxobutanoic acid. Key properties include a melting point of 119-120ºC, a boiling point of 435.4ºC at 760 mmHg, a density of 1.457 g/cm3 and a flash point of 217.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70685-06-2
Jingsj CID
J-1522265-3
Molecular Formula
C8H7ClO3S
Chinese Name
4-(5-氯-2-噻吩)-4-氧丁酸
Molecular Weight
218.65700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point119-120ºC
Boiling Point435.4ºC at 760 mmHg
Density1.457 g/cm3
Flash Point217.1ºC

Frequently Asked Questions

What is the CAS number of 4-(5-Chloro-2-thienyl)-4-oxobutyric acid?

The CAS number of 4-(5-Chloro-2-thienyl)-4-oxobutyric acid is 70685-06-2.

What are the molecular formula and molecular weight of 4-(5-Chloro-2-thienyl)-4-oxobutyric acid?

4-(5-Chloro-2-thienyl)-4-oxobutyric acid has molecular formula C8H7ClO3S and molecular weight 218.65700 g/mol.

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

Last updated:

How to cite: Jingsj. "4-(5-Chloro-2-thienyl)-4-oxobutyric acid (CAS 70685-06-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522265-3 (accessed 2026-10-24).

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