1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid

1,3-二甲基-1H-噻吩并[2,3-c]吡唑-5-羧酸

Also known as: 1,3-Dimethylthieno[2,3-c]pyrazole-5-carboxylic acid, 1H-Thieno[2,3-c]pyrazole-5-carboxylic acid, 1,3-dimethyl-, 5-Carboxy-1,3-dimethyl-1H-thieno[2,3-c]pyrazole, MFCD00126746

1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid (CAS 25252-46-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8N2O2S and a molecular weight of 196.22600 g/mol. It is also known as 1,3-Dimethylthieno[2,3-c]pyrazole-5-carboxylic acid, 1H-Thieno[2,3-c]pyrazole-5-carboxylic acid, 1,3-dimethyl- and 5-Carboxy-1,3-dimethyl-1H-thieno[2,3-c]pyrazole. Key properties include a melting point of 316-317ºC, a boiling point of 401.5ºC at 760mmHg, a density of 1.54g/cm3 and a flash point of 196.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25252-46-4
Jingsj CID
J-8678-9
Molecular Formula
C8H8N2O2S
Chinese Name
1,3-二甲基-1H-噻吩并[2,3-c]吡唑-5-羧酸
Molecular Weight
196.22600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point316-317ºC
Boiling Point401.5ºC at 760mmHg
Density1.54g/cm3
Flash Point196.6ºC

Frequently Asked Questions

What is the CAS number of 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid?

The CAS number of 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid is 25252-46-4.

What are the molecular formula and molecular weight of 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid?

1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid has molecular formula C8H8N2O2S and molecular weight 196.22600 g/mol.

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

Last updated:

How to cite: Jingsj. "1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid (CAS 25252-46-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8678-9 (accessed 2026-10-23).

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