methyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylate

3-氧代-3,4-二氢-2H-1,4-苯并噁嗪-7-甲酸甲酯

Also known as: methyl 3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-carboxylate, methyl 3-oxo-4H-1,4-benzoxazine-7-carboxylate, methyl 3-oxo-2,4-dihydro-1,4-benzoxazine-7-carboxylate, 7-methoxycarbonyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine, 2H-1,4-Benzoxazine-7-carboxylic acid, 3,4-dihydro-3-oxo-, methyl ester, 3-keto-4H-1,4-benzoxazine-7-carboxylic acid methyl ester, methyl 3-oxo-3,4-dihydro-2H-1,4,benzoxazin-7-carboxylate

methyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylate (CAS 142166-00-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9NO4 and a molecular weight of 207.183 g/mol. It is also known as methyl 3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-carboxylate, methyl 3-oxo-4H-1,4-benzoxazine-7-carboxylate and methyl 3-oxo-2,4-dihydro-1,4-benzoxazine-7-carboxylate. Key properties include a melting point of 256-258ºC, a boiling point of 411.6±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 202.8±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
142166-00-5
Jingsj CID
J-1601975-9
Molecular Formula
C10H9NO4
Chinese Name
3-氧代-3,4-二氢-2H-1,4-苯并噁嗪-7-甲酸甲酯
Molecular Weight
207.183 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point256-258ºC
Boiling Point411.6±45.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point202.8±28.7 °C

Frequently Asked Questions

What is the CAS number of methyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylate?

The CAS number of methyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylate is 142166-00-5.

What are the molecular formula and molecular weight of methyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylate?

methyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylate has molecular formula C10H9NO4 and molecular weight 207.183 g/mol.

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

Last updated:

How to cite: Jingsj. "methyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylate (CAS 142166-00-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1601975-9 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.