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4,4-Dimethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one

Also known as: 4,4-dimethyl-1h-3,1-benzoxazin-2-one, 4,4-dimethyl-1h-3,1-benzooxazine-2(4h)-one, 4,4-dimethyl-1h-benzo[d][1,3]oxazin-2(4h)-one, 4,4-dimethyl-2,4-dihydro-1h-3,1-benzoxazin-2-one, 1,4-dihydro-4,4-dimethyl-2h-3,1-benzoxazin-2-one, 1,4-dihydro-4,4-dimethyl-1,3-benzo[d]oxazin-2-one, 2h-3,1-benzoxazin-2-one, 1,4-dihydro-4,4-dimethyl-, 4h-3,1-benzoxazin-2-one, 1,2-dihydro-4,4-dimethyl-, 4,4-dimethyl-1,4-dihydro-2h-3,1-benzooxazine-2-one, 4,4-dimethyl-1,4-dihydro-2h-benzo[d][1,3]oxazin-2-one

4,4-Dimethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one (CAS 21440-96-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H11NO2 and a molecular weight of 177.20000 g/mol. Key properties include a boiling point of 219.7ºC at 760 mmHg, a density of 1.119g/cm3 and a flash point of 86.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21440-96-0
Jingsj CID
J-1316357-0
Molecular Formula
C10H11NO2
Molecular Weight
177.20000 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point219.7ºC at 760 mmHg
Density1.119g/cm3
Flash Point86.7ºC
Exact Mass177.07900
PSA41.82000
LogP1.93300
Vapor Pressure0.118mmHg at 25°C
Refractive Index1.521

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 4,4-Dimethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one?

The CAS number of 4,4-Dimethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one is 21440-96-0.

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

4,4-Dimethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one has molecular formula C10H11NO2 and molecular weight 177.20000 g/mol.

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

For 4,4-Dimethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one, Upstream Products: 2-(2-Aminophenyl)propan-2-ol, 1,1'-Carbonyldiimidazole, 2'-Aminoacetophenone.

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

Last updated:

How to cite: Jingsj. "4,4-Dimethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one (CAS 21440-96-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1316357-0 (accessed 2026-11-09).

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