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1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione

Also known as: 1-methyl-3,4-dihydro-1,4-benzodiazepine-2,5-dione, 1-methyl-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dione, 1H-1,4-Benzodiazepine-2,5-dione, 3,4-dihydro-1-methyl-, 1-methyl-3H-1,4-benzodiazepine-2,5(1H,4H)-dione, IFLAB-BB F1671-0071

1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione (CAS 1133-42-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H10N2O2 and a molecular weight of 190.19900 g/mol. Key properties include a melting point of 192-193 °C, a boiling point of 555.5ºC at 760 mmHg, a density of 1.234g/cm3 and a flash point of 289.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1133-42-2
Jingsj CID
J-21633-1
Molecular Formula
C10H10N2O2
Molecular Weight
190.19900 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point192-193 °C
Boiling Point555.5ºC at 760 mmHg
Density1.234g/cm3
Flash Point289.8ºC
Exact Mass190.07400
PSA49.41000
LogP0.78660
Vapor Pressure2.23E-12mmHg at 25°C
Refractive Index1.566
Storage Conditions2-8°C

Customs & Trade Information

HS Code2933990090
Summary2933990090. 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 1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione?

The CAS number of 1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione is 1133-42-2.

What are the molecular formula and molecular weight of 1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione?

1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione has molecular formula C10H10N2O2 and molecular weight 190.19900 g/mol.

What are the upstream and downstream products of 1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione?

For 1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione, Upstream Products: benzoic acid, Methyl 2-(methylamino)benzoate, 2-[[(1,1-Dimethylethoxy)carbonyl]methylamino]benzoic acid.

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

Last updated:

How to cite: Jingsj. "1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione (CAS 1133-42-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21633-1 (accessed 2026-11-09).

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