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6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione

Also known as: 6-Methylisatoic anhydride, 6-methyl isatinic anhydride, 5-methylisatoic anhydride, 6-Methyl-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione, 6-methyl-1H-3,1-benzoxazine-2,4-dione, 6-methyl-1H-benzo[d][1,3]oxazine-2,4-dione, 5-Methyl-1H-benzo[d][1,3]oxazine-2,4-dione, BUTTPARK 148\07-03, MFCD06809783, MFCD00797331

6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione (CAS 4692-99-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H7NO3 and a molecular weight of 177.15900 g/mol. Key properties include a boiling point of 629.6±58.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 334.6±32.3 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
4692-99-3
Jingsj CID
J-1324876-5
Molecular Formula
C9H7NO3
Molecular Weight
177.15900 g/mol
Category
Organic Acids
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point629.6±58.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point334.6±32.3 °C
Exact Mass392.064453
PSA118.13000
LogP1.87
Vapor Pressure0.0±1.8 mmHg at 25°C
Refractive Index1.691

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 6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione?

The CAS number of 6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione is 4692-99-3.

What are the molecular formula and molecular weight of 6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione?

6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione has molecular formula C9H7NO3 and molecular weight 177.15900 g/mol.

What are the upstream and downstream products of 6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione?

For 6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione, Upstream Products: 2-Amino-5-methylbenzoic acid, Diphosgene, 5-Methylindole; Downstream Products: 7-Methyl-2,3,4,5-tetrahydro-1H-benzo[e][1,4]diazepine, 2-Amino-5-methylbenzamide, 2-Amino-5-methylbenzohydrazide.

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

Last updated:

How to cite: Jingsj. "6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione (CAS 4692-99-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1324876-5 (accessed 2026-11-09).

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