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Thiazole-5-carboxylic acid

Also known as: 5-Thiazolecarboxylic acid, 1,3-Thiazole-5-carboxylic acid, Thiazole-5-carboxylic acid, 5-Thiazole carboxylic acid, 1,3-Thiazole-5-carboxyic acid

Thiazole-5-carboxylic acid (CAS 14527-41-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3NO2S and a molecular weight of 129.137 g/mol. Key properties include a melting point of 190-198ºC, a boiling point of 319.2±15.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 146.9±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14527-41-4
Jingsj CID
J-1503020-3
Molecular Formula
C4H3NO2S
Molecular Weight
129.137 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point190-198ºC
Boiling Point319.2±15.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point146.9±20.4 °C
Exact Mass128.988449
PSA78.43000
LogP0.12
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.618

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 Thiazole-5-carboxylic acid?

The CAS number of Thiazole-5-carboxylic acid is 14527-41-4.

What are the molecular formula and molecular weight of Thiazole-5-carboxylic acid?

Thiazole-5-carboxylic acid has molecular formula C4H3NO2S and molecular weight 129.137 g/mol.

What are the upstream and downstream products of Thiazole-5-carboxylic acid?

For Thiazole-5-carboxylic acid, Upstream Products: 2-(Trimethylsilyl)thiazole, Thiazole, Carbon dioxide; Downstream Products: 2-Methyl-1,3-thiazole-4-carboxylic acid, 5-Methylthiazole-2-carboxylic acid, tert-butyl thiazol-5-ylcarbamate.

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

Last updated:

How to cite: Jingsj. "Thiazole-5-carboxylic acid (CAS 14527-41-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503020-3 (accessed 2026-11-09).

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