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2-Mercapto-4(3H)-quinazolinone

Also known as: 2,3-Dihydro-2-thioxoquinazolin-4(1H)-one, 2-Thioxo-1,2,3,4-tetrahydroquinazolin-4-one, 2-Mercaptoquinazolin-4(3H)-one, 2-Sulfanylidene-1H-quinazolin-4-one, 4(1H)-Quinazolinone, 2,3-dihydro-2-thioxo-

2-Mercapto-4(3H)-quinazolinone (CAS 13906-09-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H6N2OS and a molecular weight of 178.21100 g/mol. Key properties include a melting point of >300 °C(lit.), a boiling point of 330.5ºC at 760mmHg, a density of 1.46g/cm3 and a flash point of 153.7ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
13906-09-7
Jingsj CID
J-44905-8
Molecular Formula
C8H6N2OS
Molecular Weight
178.21100 g/mol
Category
Ketones
Last updated
11/3/2026

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Physicochemical Properties

Melting Point>300 °C(lit.)
Boiling Point330.5ºC at 760mmHg
Density1.46g/cm3
Flash Point153.7ºC
Exact Mass178.02000
PSA84.55000
LogP1.21180
Vapor Pressure0.000165mmHg at 25°C
Refractive Index1.728

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-Mercapto-4(3H)-quinazolinone?

The CAS number of 2-Mercapto-4(3H)-quinazolinone is 13906-09-7.

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

2-Mercapto-4(3H)-quinazolinone has molecular formula C8H6N2OS and molecular weight 178.21100 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Mercapto-4(3H)-quinazolinone (CAS 13906-09-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44905-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.