N-Phenyl-2,3-naphthalimide
Also known as: 2-Phenyl-1H-benz[f]isoindole-1,3(2H)-dione, 2-Phenylbenzo[f]isoindole-1,3-dione, N-Phenylnaphthalene-2,3-dicarboximide, 1H-Benz[f]isoindole-1,3(2H)-dione, 2-phenyl-
N-Phenyl-2,3-naphthalimide (CAS 21815-18-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C18H11NO2 and a molecular weight of 273.28500 g/mol. Key properties include a melting point of 278-284ºC, a boiling point of 482.8ºC at 760mmHg, a density of 1.36g/cm3 and a flash point of 231.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21815-18-9
- Jingsj CID
- J-39099-8
- Molecular Formula
- C18H11NO2
- Molecular Weight
- 273.28500 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 278-284ºC |
|---|---|
| Boiling Point | 482.8ºC at 760mmHg |
| Density | 1.36g/cm3 |
| Flash Point | 231.5ºC |
| Exact Mass | 273.07900 |
| PSA | 37.38000 |
| LogP | 3.70540 |
| Vapor Pressure | 1.78E-09mmHg at 25°C |
| Refractive Index | 1.726 |
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-Phenyl-2,3-naphthalimide?
The CAS number of N-Phenyl-2,3-naphthalimide is 21815-18-9.
What are the molecular formula and molecular weight of N-Phenyl-2,3-naphthalimide?
N-Phenyl-2,3-naphthalimide has molecular formula C18H11NO2 and molecular weight 273.28500 g/mol.
What are the upstream and downstream products of N-Phenyl-2,3-naphthalimide?
For N-Phenyl-2,3-naphthalimide, Upstream Products: 2,3-Diiodonaphthalene, 2,3-Naphthalenedicarboxylic Anhydride, N-Phenylmaleimide.
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-Phenyl-2,3-naphthalimide (CAS 21815-18-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39099-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.