4-Bromo-2-furaldehyde
Also known as: 4-Bromofurfural, 4-Bromofuran-2-carbaldehyde, 4-Bromo-2-formylfuran, 4-Bromofuran-2-carboxaldehyde, 4-Bromo-furan-2-carbaldehyde, 2-Furancarboxaldehyde, 4-bromo-
4-Bromo-2-furaldehyde (CAS 21921-76-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3BrO2 and a molecular weight of 174.980 g/mol. Key properties include a melting point of 54-58 °C, a boiling point of 225.0±20.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 89.9±21.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21921-76-6
- Jingsj CID
- J-13936-6
- Molecular Formula
- C5H3BrO2
- Molecular Weight
- 174.980 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 54-58 °C |
|---|---|
| Boiling Point | 225.0±20.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 89.9±21.8 °C |
| Exact Mass | 173.931641 |
| PSA | 30.21000 |
| LogP | 1.63 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.573 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- 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 4-Bromo-2-furaldehyde?
The CAS number of 4-Bromo-2-furaldehyde is 21921-76-6.
What are the molecular formula and molecular weight of 4-Bromo-2-furaldehyde?
4-Bromo-2-furaldehyde has molecular formula C5H3BrO2 and molecular weight 174.980 g/mol.
Is 4-Bromo-2-furaldehyde hazardous?
4-Bromo-2-furaldehyde has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Bromo-2-furaldehyde (CAS 21921-76-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13936-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.