2,3-Dibromo-N-methylmaleimide

Also known as: 1-Methyl-3,4-dibromo-1H-pyrrole-2,5-dione, 1-Methyl-3,4-dibromo-2,5-dihydro-1H-pyrrole-2,5-dione, 1-methyl-3,4-dibromomaleimide, 3,4-Dibromo-N-methylmaleimide, 3,4-Dibromo-N-methylpyrrole-2,5-dione, 3,4-dibromo-1-methyl-2,5-dihydro-1H-2,5-pyrroledione, 3,4-dibromo-1-methyl-2,5-dihydropyrrole-2,5-dione, N-Methyl-2,3-dibromomaleimide, N-Methyl-dibromomaleinimide, N-Methyldibromomaleinimide, dibromo-N-methyl-maleimid

2,3-Dibromo-N-methylmaleimide (CAS 3005-27-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H3Br2NO2 and a molecular weight of 268.89100 g/mol. Key properties include a melting point of 120-124 °C(lit.), a boiling point of 246.1ºC at 760 mmHg, a density of 2.427 g/cm3 and a flash point of 102.6ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3005-27-4
Jingsj CID: J-1505114-6
Molecular Formula: C₅H₃Br₂NO₂
Molecular Weight: 268.89100 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	120-124 °C(lit.)
Boiling Point	246.1ºC at 760 mmHg
Density	2.427 g/cm3
Flash Point	102.6ºC
Exact Mass	266.85300
PSA	37.38000
LogP	0.92430
Refractive Index	1.686

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H319 — Causes serious eye irritation

Customs & Trade Information

HS Code	2925190090
Summary	2925190090 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 2,3-Dibromo-N-methylmaleimide?

The CAS number of 2,3-Dibromo-N-methylmaleimide is 3005-27-4.

What are the molecular formula and molecular weight of 2,3-Dibromo-N-methylmaleimide?

2,3-Dibromo-N-methylmaleimide has molecular formula C5H3Br2NO2 and molecular weight 268.89100 g/mol.

Is 2,3-Dibromo-N-methylmaleimide hazardous?

2,3-Dibromo-N-methylmaleimide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 2,3-Dibromo-N-methylmaleimide?

For 2,3-Dibromo-N-methylmaleimide, Upstream Products: 1-Methylpyrrole, 3,4-Dibromo-1H-pyrrole-2,5-dione, iodomethane; Downstream Products: Cyclopentadiene, N-Methylphthalimide, Bisindolylmaleimide IV.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2,3-Dibromo-N-methylmaleimide (CAS 3005-27-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1505114-6 (accessed 2026-11-09).

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