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6-Hydroxy-7-methoxy-3,4-dihydroquinazolin-4-one

Also known as: 6-Hydroxy-7-methoxyquinazolin-4(3H)-one, 6-Hydroxy-7-methoxyquinazolin-4(1H)-one, 6-Hydroxy-7-methoxy-3H-quinazolin-4-one, 6-Hydroxy-7-methoxy-4(3H)-quinazolinone, Gefitinib intermediate III, 7-Methoxyquinazoline-4,6-diol, 4(3H)-Quinazolinone, 6-hydroxy-7-methoxy-, 6-Hydroxy-7-methoxy-1H-quinazolin-4-one

6-Hydroxy-7-methoxy-3,4-dihydroquinazolin-4-one (CAS 179688-52-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H8N2O3 and a molecular weight of 192.171 g/mol. Key properties include a melting point of 291 °C, a boiling point of 503.3±40.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 258.2±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
179688-52-9
Jingsj CID
J-1390714-7
Molecular Formula
C9H8N2O3
Molecular Weight
192.171 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point291 °C
Boiling Point503.3±40.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point258.2±27.3 °C
Exact Mass192.053497
PSA75.21000
LogP-0.26
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.659

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 6-Hydroxy-7-methoxy-3,4-dihydroquinazolin-4-one?

The CAS number of 6-Hydroxy-7-methoxy-3,4-dihydroquinazolin-4-one is 179688-52-9.

What are the molecular formula and molecular weight of 6-Hydroxy-7-methoxy-3,4-dihydroquinazolin-4-one?

6-Hydroxy-7-methoxy-3,4-dihydroquinazolin-4-one has molecular formula C9H8N2O3 and molecular weight 192.171 g/mol.

What are the upstream and downstream products of 6-Hydroxy-7-methoxy-3,4-dihydroquinazolin-4-one?

For 6-Hydroxy-7-methoxy-3,4-dihydroquinazolin-4-one, Upstream Products: 6,7-Dimethoxyquinazolin-4(3H)-one, Methyl 2-amino-5-hydroxy-4-methoxybenzoate, Methanimidic acid, (Z)-; Downstream Products: 4-((3-Chloro-4-fluorophenyl)amino)-7-methoxyquinazolin-6-yl acetate, 3,4-dihydro-7-methoxy-4-oxoquinazolin-6-yl acetate, 4-[(3-Chloro-4-fluorophenyl)amino]-7-methoxyquinazolin-6-ol.

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

Last updated:

How to cite: Jingsj. "6-Hydroxy-7-methoxy-3,4-dihydroquinazolin-4-one (CAS 179688-52-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1390714-7 (accessed 2026-11-09).

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