4-Phenyl-2(3H)-thiazolone

4-苯基噻唑啉-2-酮

Also known as: 2-Hydroxy-4-phenylthiazole, 2-oxo-4-phenylthiazole, 4-Phenyl-1,3-thiazol-2-ol, 4-Phenyl-2-thiazolol, 4-Phenyl-3H-1,3-thiazol-2-one, 4-Phenylthiazol-2-ol, 4-Phenylthiazolin-2-one, 2-Thiazolol, 4-phenyl, 4-Phenyl-3H-thiazol-2-on, 4-fenil-3H-tiazol-2-one, 4-phenyl-2,3-dihydro-2-thiazolone, 4-phenyl-2-oxo-thiazole, BUTTPARK 16\06-68, MFCD00665954, SALOR-INT L499528-1EA

4-Phenyl-2(3H)-thiazolone (CAS 3884-31-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NOS and a molecular weight of 177.22300 g/mol. It is also known as 2-Hydroxy-4-phenylthiazole, 2-oxo-4-phenylthiazole and 4-Phenyl-1,3-thiazol-2-ol. Key properties include a melting point of 207-210ºC, a boiling point of 385ºC at 760 mmHg, a density of 1.301g/cm3 and a flash point of 186.7ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3884-31-9
Jingsj CID
J-1090292-3
Molecular Formula
C9H7NOS
Chinese Name
4-苯基噻唑啉-2-酮
Molecular Weight
177.22300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point207-210ºC
Boiling Point385ºC at 760 mmHg
Density1.301g/cm3
Flash Point186.7ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-Phenyl-2(3H)-thiazolone?

The CAS number of 4-Phenyl-2(3H)-thiazolone is 3884-31-9.

What are the molecular formula and molecular weight of 4-Phenyl-2(3H)-thiazolone?

4-Phenyl-2(3H)-thiazolone has molecular formula C9H7NOS and molecular weight 177.22300 g/mol.

Is 4-Phenyl-2(3H)-thiazolone hazardous?

4-Phenyl-2(3H)-thiazolone has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "4-Phenyl-2(3H)-thiazolone (CAS 3884-31-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1090292-3 (accessed 2026-10-22).

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