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2,5-Dichlorothiophene-3-carboxylic acid

2,5-二氯-3-噻吩甲酸

Also known as: 2,5-DICHLOROTHIOPHENE-3-CARBOXYLIC ACID, 3-Thiophenecarboxylic acid, 2,5-dichloro-, AKOS 90171, RARECHEM AL BE 1205, Rivaroxaban Impurity 77, NSC 14775

2,5-Dichlorothiophene-3-carboxylic acid (CAS 36157-41-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2Cl2O2S and a molecular weight of 197.03900 g/mol. It is also known as 2,5-DICHLOROTHIOPHENE-3-CARBOXYLIC ACID, 3-Thiophenecarboxylic acid, 2,5-dichloro- and AKOS 90171. Key properties include a melting point of 147-151 °C(lit.), a boiling point of 296.6ºC at 760 mmHg, a density of 1.708 g/cm3 and a flash point of 133.2ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
36157-41-2
Jingsj CID
J-1090117-9
Molecular Formula
C5H2Cl2O2S
Chinese Name
2,5-二氯-3-噻吩甲酸
Molecular Weight
197.03900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point147-151 °C(lit.)
Boiling Point296.6ºC at 760 mmHg
Density1.708 g/cm3
Flash Point133.2ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,5-Dichlorothiophene-3-carboxylic acid?

The CAS number of 2,5-Dichlorothiophene-3-carboxylic acid is 36157-41-2.

What are the molecular formula and molecular weight of 2,5-Dichlorothiophene-3-carboxylic acid?

2,5-Dichlorothiophene-3-carboxylic acid has molecular formula C5H2Cl2O2S and molecular weight 197.03900 g/mol.

Is 2,5-Dichlorothiophene-3-carboxylic acid hazardous?

2,5-Dichlorothiophene-3-carboxylic 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. "2,5-Dichlorothiophene-3-carboxylic acid (CAS 36157-41-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1090117-9 (accessed 2026-10-22).

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