N-Hydroxyphthalimide
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. 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-29621-9
- Molecular Formula
- C8H5NO3
- Molecular Weight
- 163.130 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 233 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 370.3±25.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 177.8±23.2 °C |
| Exact Mass | 163.026947 |
| PSA | 57.61000 |
| LogP | 0.42 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.718 |
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-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.
What are the upstream and downstream products of N-Hydroxyphthalimide?
For N-Hydroxyphthalimide, Upstream Products: Phthalic anhydride, 1H-Isoindole-1,3(2H)-dione, 2-(phenylmethoxy)-, Diethyl phthalate; Downstream Products: cyclopentadecanol, O-Allylhydroxylamine hydrochloride, N-Allyloxyphthalimide.
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-Hydroxyphthalimide (CAS 524-38-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29621-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.