5-Chloro-1(3H)-isobenzofuranone
5-氯-1(3H)-异苯并呋喃酮
Also known as: 5-Chlorophthalide, 5-Chloro-3H-2-benzofuran-1-one, 5-Chloro-3H-isobenzofuran-1-one, 5-chloro-1,3-dihydro-2-benzofuran-1-one, 1(3H)-Isobenzofuranone,5-chloro-, NSC 49581
5-Chloro-1(3H)-isobenzofuranone (CAS 54109-03-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H5ClO2 and a molecular weight of 168.57700 g/mol. It is also known as 5-Chlorophthalide, 5-Chloro-3H-2-benzofuran-1-one and 5-Chloro-3H-isobenzofuran-1-one. Key properties include a boiling point of 363.9ºC at 760mmHg, a density of 1.428g/cm3 and a flash point of 205.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 54109-03-4
- Jingsj CID
- J-1500553-9
- Molecular Formula
- C8H5ClO2
- Chinese Name
- 5-氯-1(3H)-异苯并呋喃酮
- Molecular Weight
- 168.57700 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 363.9ºC at 760mmHg |
|---|---|
| Density | 1.428g/cm3 |
| Flash Point | 205.9ºC |
Frequently Asked Questions
What is the CAS number of 5-Chloro-1(3H)-isobenzofuranone?
The CAS number of 5-Chloro-1(3H)-isobenzofuranone is 54109-03-4.
What are the molecular formula and molecular weight of 5-Chloro-1(3H)-isobenzofuranone?
5-Chloro-1(3H)-isobenzofuranone has molecular formula C8H5ClO2 and molecular weight 168.57700 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Chloro-1(3H)-isobenzofuranone (CAS 54109-03-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1500553-9 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.