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N-Phenylphthalimide

Also known as: 2-Phenylisoindole-1,3-dione, 2-Phenyl-1H-isoindole-1,3(2H)-dione, 1H-Isoindole-1,3(2H)-dione, 2-phenyl-, PHTHALANIL, Phenylphthalimide, N-Phenylphthalimide, 98+%, EINECS 208-282-9, MFCD00023044, Phthalimide,N-phenyl-

N-Phenylphthalimide (CAS 520-03-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C14H9NO2 and a molecular weight of 223.227 g/mol. Key properties include a melting point of 204-207 °C(lit.), a boiling point of 388.8±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 182.6±15.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
520-03-6
Jingsj CID
J-44353-8
Molecular Formula
C14H9NO2
Molecular Weight
223.227 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point204-207 °C(lit.)
Boiling Point388.8±25.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point182.6±15.5 °C
Exact Mass223.063324
PSA37.38000
LogP2.40
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.667

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-Phenylphthalimide?

The CAS number of N-Phenylphthalimide is 520-03-6.

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

N-Phenylphthalimide has molecular formula C14H9NO2 and molecular weight 223.227 g/mol.

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

For N-Phenylphthalimide, Upstream Products: 2-Iodobenzoic acid, Methyl 2-iodobenzoate, Phenylboronic acid; Downstream Products: 2,3-Dihydro-2-phenyl-1H-isoindol-1-one, 4-Isocyanobenzophenone, N-aminophthalimide.

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-Phenylphthalimide (CAS 520-03-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44353-8 (accessed 2026-11-09).

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