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Methyl 4-methylthiazole-5-carboxylate

Also known as: 5-Thiazolecarboxylic acid, 4-methyl-, methyl ester, MFCD00129998, Methyl 4-methyl-1,3-thiazole-5-carboxylate, Methyl 4-methyl-5-thiazolecarboxylate, Methyl 4-methyl-5-thiazolyl formate, methyl 4-methylthiazole-5-carboxylate

Methyl 4-methylthiazole-5-carboxylate (CAS 81569-44-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H7NO2S and a molecular weight of 157.190 g/mol. Key properties include a boiling point of 221.4±20.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 87.7±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81569-44-0
Jingsj CID
J-1354528-3
Molecular Formula
C6H7NO2S
Molecular Weight
157.190 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point221.4±20.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point87.7±21.8 °C
Exact Mass157.019745
PSA67.43000
LogP0.88
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.535

Customs & Trade Information

HS Code2934100090
Summary2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Methyl 4-methylthiazole-5-carboxylate?

The CAS number of Methyl 4-methylthiazole-5-carboxylate is 81569-44-0.

What are the molecular formula and molecular weight of Methyl 4-methylthiazole-5-carboxylate?

Methyl 4-methylthiazole-5-carboxylate has molecular formula C6H7NO2S and molecular weight 157.190 g/mol.

What are the upstream and downstream products of Methyl 4-methylthiazole-5-carboxylate?

For Methyl 4-methylthiazole-5-carboxylate, Upstream Products: Ethyl 4-methylthiazole-5-carboxylate, Methyl acetoacetate, Diazomethane; Downstream Products: (4-Methyl-1,3-thiazol-5-yl)methanol, 4-Methylthiazole-5-carboxaldehyde.

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

Last updated:

How to cite: Jingsj. "Methyl 4-methylthiazole-5-carboxylate (CAS 81569-44-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1354528-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.