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2-Mercaptothiazole

Also known as: 2(3H)-Thiazolethione, 1,3-Thiazole-2(3H)-thione, 1,3-thiazole-2-thiol, 2-Thiazolethiol, 2-sulfanyl-1,3-thiazole, 4-Thiazoline-2-thione, Thiazole-2(3H)-thione, Thiazoline-2-thione, mercaptothiazole, 2-mercapto-1,3-thiazole

2-Mercaptothiazole (CAS 5685-05-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H3NS2 and a molecular weight of 117.193 g/mol. Key properties include a melting point of 79-80ºC, a boiling point of 194.7±23.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 71.5±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5685-05-2
Jingsj CID
J-1140694-3
Molecular Formula
C3H3NS2
Molecular Weight
117.193 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point79-80ºC
Boiling Point194.7±23.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point71.5±22.6 °C
Exact Mass116.970688
PSA79.93000
LogP0.89
Vapor Pressure0.4±0.4 mmHg at 25°C
Refractive Index1.755

Frequently Asked Questions

What is the CAS number of 2-Mercaptothiazole?

The CAS number of 2-Mercaptothiazole is 5685-05-2.

What are the molecular formula and molecular weight of 2-Mercaptothiazole?

2-Mercaptothiazole has molecular formula C3H3NS2 and molecular weight 117.193 g/mol.

What are the upstream and downstream products of 2-Mercaptothiazole?

For 2-Mercaptothiazole, Upstream Products: Chloroacetaldehyde, Ammonium dithiocarbamate, bromoacetaldehyde; Downstream Products: 2-(Methylthio)thiazole, 2,2'-Dithiobis(thiazole), 1,3-Thiazole-2-sulfonyl chloride.

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

Last updated:

How to cite: Jingsj. "2-Mercaptothiazole (CAS 5685-05-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1140694-3 (accessed 2026-11-09).

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