METHYL 4,5-DICHLOROISOTHIAZOLE-3-CARBOXYLATE

4,5-二氯异噻唑-3-羧酸甲酯

Also known as: 3-Isothiazolecarboxylic acid, 4,5-dichloro-, methyl ester, 4,5-dichloro-isothiazole-3-carboxylic acid methyl ester, methyl 4,5-dichloro-1,2-thiazole-3-carboxylate

METHYL 4,5-DICHLOROISOTHIAZOLE-3-CARBOXYLATE (CAS 166668-76-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3Cl2NO2S and a molecular weight of 212.05400 g/mol. It is also known as 3-Isothiazolecarboxylic acid, 4,5-dichloro-, methyl ester, 4,5-dichloro-isothiazole-3-carboxylic acid methyl ester and methyl 4,5-dichloro-1,2-thiazole-3-carboxylate. Key properties include a melting point of 52ºC, a boiling point of 207.5ºC at 760mmHg and a density of 1.583g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
166668-76-4
Jingsj CID
J-1458626-2
Molecular Formula
C5H3Cl2NO2S
Chinese Name
4,5-二氯异噻唑-3-羧酸甲酯
Molecular Weight
212.05400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point52ºC
Boiling Point207.5ºC at 760mmHg
Density1.583g/cm3

Frequently Asked Questions

What is the CAS number of METHYL 4,5-DICHLOROISOTHIAZOLE-3-CARBOXYLATE?

The CAS number of METHYL 4,5-DICHLOROISOTHIAZOLE-3-CARBOXYLATE is 166668-76-4.

What are the molecular formula and molecular weight of METHYL 4,5-DICHLOROISOTHIAZOLE-3-CARBOXYLATE?

METHYL 4,5-DICHLOROISOTHIAZOLE-3-CARBOXYLATE has molecular formula C5H3Cl2NO2S and molecular weight 212.05400 g/mol.

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

Last updated:

How to cite: Jingsj. "METHYL 4,5-DICHLOROISOTHIAZOLE-3-CARBOXYLATE (CAS 166668-76-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1458626-2 (accessed 2026-10-24).

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