4-Methyl-2-(2-pyrazinyl)-1,3-thiazole-5-carboxylic acid

4-甲基-2-(2-吡嗪基)-1,3-噻唑-5-羧酸

Also known as: 4-methyl-2-(2-pyrazinyl)thiazole-5-carboxylic acid, 4-methyl-2-(pyrazin-2-yl)-1,3-thiazole-5-carboxylic acid, 4-methyl-2-(pyrazin-2-yl)thiazole-5-carboxylic acid, 2-(2-pyrazinyl)-4-methylthiazole-5-carboxylic acid, 4-methyl-2-(2-pyrazinyl)-5-thiazolecarboxylic acid, 4-methyl-2-pyrazin-2-yl-1,3-thiazole-5-carboxylic acid, 5-thiazolecarboxylic acid, 4-methyl-2-(2-pyrazinyl)-

4-Methyl-2-(2-pyrazinyl)-1,3-thiazole-5-carboxylic acid (CAS 216959-92-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7N3O2S and a molecular weight of 221.23600 g/mol. It is also known as 4-methyl-2-(2-pyrazinyl)thiazole-5-carboxylic acid, 4-methyl-2-(pyrazin-2-yl)-1,3-thiazole-5-carboxylic acid and 4-methyl-2-(pyrazin-2-yl)thiazole-5-carboxylic acid. Key properties include a melting point of 237ºC, a boiling point of 474ºC at 760mmHg, a density of 1.449g/cm3 and a flash point of 240.5ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
216959-92-1
Jingsj CID
J-1091767-1
Molecular Formula
C9H7N3O2S
Chinese Name
4-甲基-2-(2-吡嗪基)-1,3-噻唑-5-羧酸
Molecular Weight
221.23600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point237ºC
Boiling Point474ºC at 760mmHg
Density1.449g/cm3
Flash Point240.5ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-Methyl-2-(2-pyrazinyl)-1,3-thiazole-5-carboxylic acid?

The CAS number of 4-Methyl-2-(2-pyrazinyl)-1,3-thiazole-5-carboxylic acid is 216959-92-1.

What are the molecular formula and molecular weight of 4-Methyl-2-(2-pyrazinyl)-1,3-thiazole-5-carboxylic acid?

4-Methyl-2-(2-pyrazinyl)-1,3-thiazole-5-carboxylic acid has molecular formula C9H7N3O2S and molecular weight 221.23600 g/mol.

Is 4-Methyl-2-(2-pyrazinyl)-1,3-thiazole-5-carboxylic acid hazardous?

4-Methyl-2-(2-pyrazinyl)-1,3-thiazole-5-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. "4-Methyl-2-(2-pyrazinyl)-1,3-thiazole-5-carboxylic acid (CAS 216959-92-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1091767-1 (accessed 2026-10-25).

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