N-Hydroxyphthalimide

N-羟基邻苯二甲酰亚胺

Also known as: 2-Hydroxyisoindoline-1,3-dione, 2-Hydroxy-1H-isoindole-1,3(2H)-dione, 2-hydroxy-1,3-isoindolinedione, NHPI, Phthaloxime, HOPHT, N-hydroxylphthalimide, hydroxyphthalimide

N-Hydroxyphthalimide (CAS 524-38-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H5NO3 and a molecular weight of 163.130 g/mol. It is also known as 2-Hydroxyisoindoline-1,3-dione, 2-Hydroxy-1H-isoindole-1,3(2H)-dione and 2-hydroxy-1,3-isoindolinedione. Key properties include a melting point of 233 °C (dec.)(lit.), a boiling point of 370.3±25.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 177.8±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
524-38-9
Jingsj CID
J-29621-0
Molecular Formula
C8H5NO3
Chinese Name
N-羟基邻苯二甲酰亚胺
Molecular Weight
163.130 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point233 °C (dec.)(lit.)
Boiling Point370.3±25.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point177.8±23.2 °C

Frequently Asked Questions

What is the CAS number of N-Hydroxyphthalimide?

The CAS number of N-Hydroxyphthalimide is 524-38-9.

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

N-Hydroxyphthalimide has molecular formula C8H5NO3 and molecular weight 163.130 g/mol.

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

Last updated:

How to cite: Jingsj. "N-Hydroxyphthalimide (CAS 524-38-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29621-0 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.