Isoquinoline-1,3,4-trione
异喹啉-1,3,4-三酮
Also known as: 1,3,4(2H)-Isoquinolinetrione, 1,3,4(2H)-Isoquinoline-1,3,4-trione, Phthalonimide, 3deh, Isoquinoline-1,3,4(2H)-trione
Isoquinoline-1,3,4-trione (CAS 521-73-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H5NO3 and a molecular weight of 175.141 g/mol. It is also known as 1,3,4(2H)-Isoquinolinetrione, 1,3,4(2H)-Isoquinoline-1,3,4-trione and Phthalonimide. Key property: a density of 1.4±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 521-73-3
- Jingsj CID
- J-1421493-4
- Molecular Formula
- C9H5NO3
- Chinese Name
- 异喹啉-1,3,4-三酮
- Molecular Weight
- 175.141 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1.4±0.1 g/cm3 |
|---|
Frequently Asked Questions
What is the CAS number of Isoquinoline-1,3,4-trione?
The CAS number of Isoquinoline-1,3,4-trione is 521-73-3.
What are the molecular formula and molecular weight of Isoquinoline-1,3,4-trione?
Isoquinoline-1,3,4-trione has molecular formula C9H5NO3 and molecular weight 175.141 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Isoquinoline-1,3,4-trione (CAS 521-73-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1421493-4 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.