3-(4-Hydroxyphenyl)-2-thioxo-1,3-thiazolidin-4-one

3-(4-羟基苯基)-2-硫代-1,3-噻唑烷-4-酮

Also known as: 3-(4-Hydroxyphenyl)-2-sulfanylidene-1,3-thiazolidin-4-one, 3-(4-Hydroxyphenyl)-2-thioxothiazolidin-4-one, 4-Thiazolidinone, 3-(4-hydroxyphenyl)-2-thioxo-, 3-(4-Hydroxyphenyl)rhodanine

3-(4-Hydroxyphenyl)-2-thioxo-1,3-thiazolidin-4-one (CAS 21346-21-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2S2 and a molecular weight of 225.28700 g/mol. It is also known as 3-(4-Hydroxyphenyl)-2-sulfanylidene-1,3-thiazolidin-4-one, 3-(4-Hydroxyphenyl)-2-thioxothiazolidin-4-one and 4-Thiazolidinone, 3-(4-hydroxyphenyl)-2-thioxo-. Key properties include a boiling point of 411.1ºC at 760 mmHg, a density of 1.6g/cm3 and a flash point of 202.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21346-21-4
Jingsj CID
J-1579287-9
Molecular Formula
C9H7NO2S2
Chinese Name
3-(4-羟基苯基)-2-硫代-1,3-噻唑烷-4-酮
Molecular Weight
225.28700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point411.1ºC at 760 mmHg
Density1.6g/cm3
Flash Point202.4ºC

Frequently Asked Questions

What is the CAS number of 3-(4-Hydroxyphenyl)-2-thioxo-1,3-thiazolidin-4-one?

The CAS number of 3-(4-Hydroxyphenyl)-2-thioxo-1,3-thiazolidin-4-one is 21346-21-4.

What are the molecular formula and molecular weight of 3-(4-Hydroxyphenyl)-2-thioxo-1,3-thiazolidin-4-one?

3-(4-Hydroxyphenyl)-2-thioxo-1,3-thiazolidin-4-one has molecular formula C9H7NO2S2 and molecular weight 225.28700 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(4-Hydroxyphenyl)-2-thioxo-1,3-thiazolidin-4-one (CAS 21346-21-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1579287-9 (accessed 2026-10-22).

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