3,4-Dichloroisocoumarin
3,4-二氯异香豆素
Also known as: 3,4-Dichloro-1H-2-benzopyran-1-one, 3,4-Dichloro-2-benzopyran-1-one, 1H-2-Benzopyran-1-one, 3,4-dichloro-, 3,4-DCI, MFCD00036960
3,4-Dichloroisocoumarin (CAS 51050-59-0) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H4Cl2O2 and a molecular weight of 215.03300 g/mol. It is also known as 3,4-Dichloro-1H-2-benzopyran-1-one, 3,4-Dichloro-2-benzopyran-1-one and 1H-2-Benzopyran-1-one, 3,4-dichloro-. Key properties include a boiling point of 304.7ºC at 760 mmHg, a density of 1.53 g/cm3 and a flash point of 136.6ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 51050-59-0
- Jingsj CID
- J-19656-7
- Molecular Formula
- C9H4Cl2O2
- Chinese Name
- 3,4-二氯异香豆素
- Molecular Weight
- 215.03300 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 304.7ºC at 760 mmHg |
|---|---|
| Density | 1.53 g/cm3 |
| Flash Point | 136.6ºC |
| Exact Mass | 213.95900 |
| PSA | 30.21000 |
| LogP | 3.09980 |
| Refractive Index | 1.627 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. H Djaballah, et al. Use of serine-protease inhibitors as probes for the different proteolytic activities of the rat liver multicatalytic proteinase complex. Eur J Biochem. 1992 Oct 15;209(2):629-34. |
|---|
Frequently Asked Questions
What is the CAS number of 3,4-Dichloroisocoumarin?
The CAS number of 3,4-Dichloroisocoumarin is 51050-59-0.
What are the molecular formula and molecular weight of 3,4-Dichloroisocoumarin?
3,4-Dichloroisocoumarin has molecular formula C9H4Cl2O2 and molecular weight 215.03300 g/mol.
Is 3,4-Dichloroisocoumarin hazardous?
3,4-Dichloroisocoumarin has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Dichloroisocoumarin (CAS 51050-59-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19656-7 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.