Isothiazole-5-carbaldehyde

异噻唑-5-甲醛

Also known as: 1,2-Thiazole-5-carbaldehyde, 5-Formylisothiazole, 5-Isothiazolecarboxaldehyde, Isothiazole-5-carboxaldehyde, Isothiazole-5-carboxyaldehyde

Isothiazole-5-carbaldehyde (CAS 5242-57-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3NOS and a molecular weight of 113.138 g/mol. It is also known as 1,2-Thiazole-5-carbaldehyde, 5-Formylisothiazole and 5-Isothiazolecarboxaldehyde. Key properties include a boiling point of 100.7±23.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 14.7±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5242-57-9
Jingsj CID
J-849670-4
Molecular Formula
C4H3NOS
Chinese Name
异噻唑-5-甲醛
Molecular Weight
113.138 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point100.7±23.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point14.7±22.6 °C

Frequently Asked Questions

What is the CAS number of Isothiazole-5-carbaldehyde?

The CAS number of Isothiazole-5-carbaldehyde is 5242-57-9.

What are the molecular formula and molecular weight of Isothiazole-5-carbaldehyde?

Isothiazole-5-carbaldehyde has molecular formula C4H3NOS and molecular weight 113.138 g/mol.

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

Last updated:

How to cite: Jingsj. "Isothiazole-5-carbaldehyde (CAS 5242-57-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-849670-4 (accessed 2026-10-24).

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