N-(1-Pyrenyl)maleimide
Also known as: 1-(1-Pyrenyl)-1H-pyrrole-2,5-dione, 1-pyren-1-ylpyrrole-2,5-dione, 1H-Pyrrole-2,5-dione, 1-(1-pyrenyl)-, N-(1-Pyrene)maleimide, N-(Pyren-1-yl)maleimide
N-(1-Pyrenyl)maleimide (CAS 42189-56-0) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C20H11NO2 and a molecular weight of 297.307 g/mol. Key properties include a melting point of 235-237 °C(lit.), a boiling point of 526.8±19.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 256.1±13.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 42189-56-0
- Jingsj CID
- J-28347-6
- Molecular Formula
- C20H11NO2
- Molecular Weight
- 297.307 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 235-237 °C(lit.) |
|---|---|
| Boiling Point | 526.8±19.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 256.1±13.9 °C |
| Exact Mass | 297.078979 |
| PSA | 37.38000 |
| LogP | 4.04 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.876 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory 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 N-(1-Pyrenyl)maleimide?
The CAS number of N-(1-Pyrenyl)maleimide is 42189-56-0.
What are the molecular formula and molecular weight of N-(1-Pyrenyl)maleimide?
N-(1-Pyrenyl)maleimide has molecular formula C20H11NO2 and molecular weight 297.307 g/mol.
Is N-(1-Pyrenyl)maleimide hazardous?
N-(1-Pyrenyl)maleimide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of N-(1-Pyrenyl)maleimide?
For N-(1-Pyrenyl)maleimide, Upstream Products: 1-Aminopyrene.
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-(1-Pyrenyl)maleimide (CAS 42189-56-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28347-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.