5-Amino-4(1H)-quinazolinone

Also known as: 5-aminoquinazolin-4(1H)-one, 5-aminoquinazolin-4(3H)-one, 5-amino-1H-quinazolin-4-one, 5-amino-3H-quinazolin-4-one, 5-amino-1,4-dihydroquinazolin-4-one, 5-amino-4-hydroxyquinazoline, 5-aminoquinazolin-4-ol, 4(3H)-quinazolinone,5-amino-, 4(1H)-quinazolinone,5-amino-, 5-amino-3H-chinazolin-4-on

5-Amino-4(1H)-quinazolinone (CAS 135106-40-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H7N3O and a molecular weight of 161.161 g/mol. Key properties include a boiling point of 395.1±44.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 192.8±28.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 135106-40-0
Jingsj CID: J-1449143-1
Molecular Formula: C₈H₇N₃O
Molecular Weight: 161.161 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	395.1±44.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	192.8±28.4 °C
Exact Mass	161.058914
PSA	72.03000
LogP	-0.51
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.734

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 5-Amino-4(1H)-quinazolinone?

The CAS number of 5-Amino-4(1H)-quinazolinone is 135106-40-0.

What are the molecular formula and molecular weight of 5-Amino-4(1H)-quinazolinone?

5-Amino-4(1H)-quinazolinone has molecular formula C8H7N3O and molecular weight 161.161 g/mol.

What are the upstream and downstream products of 5-Amino-4(1H)-quinazolinone?

For 5-Amino-4(1H)-quinazolinone, Upstream Products: Trimethyl orthoformate, 5-Nitro-4-hydroxyquinazoline.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Amino-4(1H)-quinazolinone (CAS 135106-40-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1449143-1 (accessed 2026-11-09).

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