3-Chloro-2,4(3H,5H)-furandione
3-氯-2,4(3H,5H)-呋喃二酮
Also known as: 3-Chlorotetronic acid, 3-Chloro-4-hydroxy-2(5H)-furanone, 3-Chlorotetrahydrofuran-2,4-dione, 3-chlorooxolane-2,4-dione, 3-Chloro-furan-2,4-dione
3-Chloro-2,4(3H,5H)-furandione (CAS 4971-55-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3ClO3 and a molecular weight of 134.51800 g/mol. It is also known as 3-Chlorotetronic acid, 3-Chloro-4-hydroxy-2(5H)-furanone and 3-Chlorotetrahydrofuran-2,4-dione. Key properties include a melting point of 206ºC (dec.)(lit.), a boiling point of 364.5ºC at 760 mmHg, a density of 1.51g/cm3 and a flash point of 192ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4971-55-5
- Jingsj CID
- J-43688-9
- Molecular Formula
- C4H3ClO3
- Chinese Name
- 3-氯-2,4(3H,5H)-呋喃二酮
- Molecular Weight
- 134.51800 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 206ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 364.5ºC at 760 mmHg |
| Density | 1.51g/cm3 |
| Flash Point | 192ºC |
| Exact Mass | 133.97700 |
| PSA | 43.37000 |
| Refractive Index | 1.48 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2932190090 |
|---|---|
| Summary | 2932190090 other compounds containing an unfused furan ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 3-Chloro-2,4(3H,5H)-furandione?
The CAS number of 3-Chloro-2,4(3H,5H)-furandione is 4971-55-5.
What are the molecular formula and molecular weight of 3-Chloro-2,4(3H,5H)-furandione?
3-Chloro-2,4(3H,5H)-furandione has molecular formula C4H3ClO3 and molecular weight 134.51800 g/mol.
Is 3-Chloro-2,4(3H,5H)-furandione hazardous?
3-Chloro-2,4(3H,5H)-furandione has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Chloro-2,4(3H,5H)-furandione (CAS 4971-55-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43688-9 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.