3-(3-Methoxyphenyl)-2-thioxo-2,3-dihydro-4(1H)-quinazolinone

3-(3-甲氧基苯基)-2-硫代-2,3-二氢喹唑啉-4(1H)-酮

Also known as: 2-Mercapto-3-(3-methoxyphenyl)quinazolin-4(3H)-one, 2-Mercapto-3-(3-methoxy-phenyl)-3H-quinazolin-4-one, 3-(3-Methoxyphenyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one, 4(1H)-Quinazolinone, 2,3-dihydro-3-(3-methoxyphenyl)-2-thioxo-, NSC 343601

3-(3-Methoxyphenyl)-2-thioxo-2,3-dihydro-4(1H)-quinazolinone (CAS 56671-19-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C15H12N2O2S and a molecular weight of 284.33300 g/mol. It is also known as 2-Mercapto-3-(3-methoxyphenyl)quinazolin-4(3H)-one, 2-Mercapto-3-(3-methoxy-phenyl)-3H-quinazolin-4-one and 3-(3-Methoxyphenyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one. Key properties include a boiling point of 464.1ºC at 760mmHg, a density of 1.4g/cm3 and a flash point of 234.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
56671-19-3
Jingsj CID
J-1180684-8
Molecular Formula
C15H12N2O2S
Chinese Name
3-(3-甲氧基苯基)-2-硫代-2,3-二氢喹唑啉-4(1H)-酮
Molecular Weight
284.33300 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point464.1ºC at 760mmHg
Density1.4g/cm3
Flash Point234.5ºC

Frequently Asked Questions

What is the CAS number of 3-(3-Methoxyphenyl)-2-thioxo-2,3-dihydro-4(1H)-quinazolinone?

The CAS number of 3-(3-Methoxyphenyl)-2-thioxo-2,3-dihydro-4(1H)-quinazolinone is 56671-19-3.

What are the molecular formula and molecular weight of 3-(3-Methoxyphenyl)-2-thioxo-2,3-dihydro-4(1H)-quinazolinone?

3-(3-Methoxyphenyl)-2-thioxo-2,3-dihydro-4(1H)-quinazolinone has molecular formula C15H12N2O2S and molecular weight 284.33300 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(3-Methoxyphenyl)-2-thioxo-2,3-dihydro-4(1H)-quinazolinone (CAS 56671-19-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1180684-8 (accessed 2026-10-25).

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