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N-Benzylmaleimide

Also known as: 1-Benzyl-1H-pyrrole-2,5-dione, 1-Benzylpyrrole-2,5-dione, 1-Benzyl-2,5-dihydro-1H-pyrrole-2,5-dione, 1H-Pyrrole-2,5-dione, 1-(phenylmethyl)-, N-Benzyl maleimide, MFCD00014540, EINECS 216-631-1, AKOS 90883, ASISCHEM D48963

N-Benzylmaleimide (CAS 1631-26-1) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C11H9NO2 and a molecular weight of 187.19 g/mol. Key properties include a melting point of 70 °C(lit.), a boiling point of 338.8±21.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 157.9±14.4 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1631-26-1
Jingsj CID
J-43600-0
Molecular Formula
C11H9NO2
Molecular Weight
187.19 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point70 °C(lit.)
Boiling Point338.8±21.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point157.9±14.4 °C
Exact Mass187.063324
PSA37.38000
LogP1.78
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.625
Additional PropertyInsoluble

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2925190090
Summary2925190090 other imides and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N-Benzylmaleimide?

The CAS number of N-Benzylmaleimide is 1631-26-1.

What are the molecular formula and molecular weight of N-Benzylmaleimide?

N-Benzylmaleimide has molecular formula C11H9NO2 and molecular weight 187.19 g/mol.

Is N-Benzylmaleimide hazardous?

N-Benzylmaleimide has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of N-Benzylmaleimide?

For N-Benzylmaleimide, Upstream Products: Maleic anhydride, Benzylamine, N-Benzylmaleamic acid; Downstream Products: (1R,5S,6S)-3-Benzyl-6-nitro-3-azabicyclo[3.1.0]hexane, tert-butyl ((1R,5S,6s)-3-benzyl-3-azabicyclo[3.1.0]hexan-6-yl)carbamate, 3-Benzyl-3,7-diazabicyclo[3.3.0]octane.

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

Last updated:

How to cite: Jingsj. "N-Benzylmaleimide (CAS 1631-26-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43600-0 (accessed 2026-11-09).

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