2-Methyl-4H-3,1-benzoxazin-4-one

Also known as: 2-Methyl-4H-benzo[d][1,3]oxazin-4-one, Acetylanthranil, Acetyl anthranil, 2-Methyl-3,1-benzoxazin-4-one, 4H-3,1-Benzoxazin-4-one, 2-methyl-

2-Methyl-4H-3,1-benzoxazin-4-one (CAS 525-76-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2 and a molecular weight of 161.15700 g/mol. Key properties include a melting point of 79-82ºC(lit.), a boiling point of 283.5ºC at 760mmHg, a density of 1.25g/cm3 and a flash point of 144.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 525-76-8
Jingsj CID: J-1477357-0
Molecular Formula: C₉H₇NO₂
Molecular Weight: 161.15700 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	79-82ºC(lit.)
Boiling Point	283.5ºC at 760mmHg
Density	1.25g/cm3
Flash Point	144.7ºC
Exact Mass	161.04800
PSA	43.10000
LogP	1.49640
Refractive Index	1.604

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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-Methyl-4H-3,1-benzoxazin-4-one?

The CAS number of 2-Methyl-4H-3,1-benzoxazin-4-one is 525-76-8.

What are the molecular formula and molecular weight of 2-Methyl-4H-3,1-benzoxazin-4-one?

2-Methyl-4H-3,1-benzoxazin-4-one has molecular formula C9H7NO2 and molecular weight 161.15700 g/mol.

What are the upstream and downstream products of 2-Methyl-4H-3,1-benzoxazin-4-one?

For 2-Methyl-4H-3,1-benzoxazin-4-one, Upstream Products: 2-Iodoaniline, Acetyl chloride, acetic acid; Downstream Products: 2-Amino-4'-methylbenzophenone, 2-Methyl-4(3H)-quinazolinone, Benzamide.

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. "2-Methyl-4H-3,1-benzoxazin-4-one (CAS 525-76-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1477357-0 (accessed 2026-11-09).

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