2-Amino-6-methyl-4(3H)-quinazolone

Also known as: 2-Amino-6-methylquinazolin-4(3H)-one, 2-Amino-6-methyl-3,4-dihydroquinazolin-4-one, 2-Amino-6-methyl-4-quinazolone, 2-Amino-6-methyl-3H-quinazolin-4-one, 2-Amino-6-methyl-1H-quinazolin-4-one, 4(3H)-Quinazolinone, 2-amino-6-methyl-

2-Amino-6-methyl-4(3H)-quinazolone (CAS 50440-82-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H9N3O and a molecular weight of 175.18700 g/mol. Key properties include a melting point of >300ºC, a boiling point of 386.5ºC at 760 mmHg, a density of 1.42g/cm3 and a flash point of 187.5ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 50440-82-9
Jingsj CID: J-50016-3
Molecular Formula: C₉H₉N₃O
Molecular Weight: 175.18700 g/mol
Category: Ketones
Last updated: 11/3/2026

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Physicochemical Properties

Melting Point	>300ºC
Boiling Point	386.5ºC at 760 mmHg
Density	1.42g/cm3
Flash Point	187.5ºC
Exact Mass	175.07500
PSA	71.77000
LogP	1.39490
Refractive Index	1.701

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. 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-Amino-6-methyl-4(3H)-quinazolone?

The CAS number of 2-Amino-6-methyl-4(3H)-quinazolone is 50440-82-9.

What are the molecular formula and molecular weight of 2-Amino-6-methyl-4(3H)-quinazolone?

2-Amino-6-methyl-4(3H)-quinazolone has molecular formula C9H9N3O and molecular weight 175.18700 g/mol.

What are the upstream and downstream products of 2-Amino-6-methyl-4(3H)-quinazolone?

For 2-Amino-6-methyl-4(3H)-quinazolone, Upstream Products: Ethyl 2-amino-5-methylbenzoate, Chloroformamidine hydrochloride, Methyl 2-amino-5-methylbenzoate.

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

Last updated: 11/3/2026

How to cite: Jingsj. "2-Amino-6-methyl-4(3H)-quinazolone (CAS 50440-82-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-50016-3 (accessed 2026-11-09).

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