Isothiazol-3(2H)-one

异噻唑-3-酮

Also known as: 1,2-Thiazol-3(2H)-one, 1,2-thiazol-3-one, 3(2H)-Isothiazolone, 3-(2H)-isothiazolone, 3-Hydroxyisothiazole, 3-Isothiazolone, 3-Oxo-2,3-dihydroisothiazole, 3-isothiasolone, Isothiazol-3-one, Isothiazolin-3-one, isothiazol-3-ol, isothiazolone, thiazol-3-one

Isothiazol-3(2H)-one (CAS 1003-07-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H3NOS and a molecular weight of 101.127 g/mol. It is also known as 1,2-Thiazol-3(2H)-one, 1,2-thiazol-3-one and 3(2H)-Isothiazolone. Key properties include a boiling point of 86.3±23.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 6.0±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1003-07-2
Jingsj CID
J-1001979-7
Molecular Formula
C3H3NOS
Chinese Name
异噻唑-3-酮
Molecular Weight
101.127 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point86.3±23.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point6.0±22.6 °C

Frequently Asked Questions

What is the CAS number of Isothiazol-3(2H)-one?

The CAS number of Isothiazol-3(2H)-one is 1003-07-2.

What are the molecular formula and molecular weight of Isothiazol-3(2H)-one?

Isothiazol-3(2H)-one has molecular formula C3H3NOS and molecular weight 101.127 g/mol.

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

Last updated:

How to cite: Jingsj. "Isothiazol-3(2H)-one (CAS 1003-07-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1001979-7 (accessed 2026-10-22).

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