5-Chloro-2-furaldehyde
Also known as: 5-chlorofuran-2-carbaldehyde, 5-chlorofuran-2-carboxaldehyde, 2-Furancarboxaldehyde, 5-chloro-, 5-Chlorofurfural, 5-chloro-2-furfural, 5-formyl-2-chlorofuran
5-Chloro-2-furaldehyde (CAS 21508-19-0) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H3ClO2 and a molecular weight of 130.529 g/mol. Key properties include a melting point of 34-37ºC(lit.), a boiling point of 190.0±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 68.7±21.8 °C. 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.
- 21508-19-0
- Jingsj CID
- J-38303-9
- Molecular Formula
- C5H3ClO2
- Molecular Weight
- 130.529 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 34-37ºC(lit.) |
|---|---|
| Boiling Point | 190.0±20.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 68.7±21.8 °C |
| Exact Mass | 129.982162 |
| PSA | 30.21000 |
| LogP | 1.50 |
| Vapor Pressure | 0.6±0.4 mmHg at 25°C |
| Refractive Index | 1.543 |
| Additional Property | Insoluble in water. |
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 5-Chloro-2-furaldehyde?
The CAS number of 5-Chloro-2-furaldehyde is 21508-19-0.
What are the molecular formula and molecular weight of 5-Chloro-2-furaldehyde?
5-Chloro-2-furaldehyde has molecular formula C5H3ClO2 and molecular weight 130.529 g/mol.
Is 5-Chloro-2-furaldehyde hazardous?
5-Chloro-2-furaldehyde has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 5-Chloro-2-furaldehyde?
For 5-Chloro-2-furaldehyde, Upstream Products: 5-Nitrofurfural, Furfural, (acetyloxy)(2-furyl)methyl acetate; Downstream Products: 5-(Dimethylamino)furan-2-carbaldehyde, (5-Chlorofuran-2-yl)methanol, 5-Chlorofuran-2-carboxylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Chloro-2-furaldehyde (CAS 21508-19-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38303-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.