Crotonaldehyde
巴豆醛
Also known as: (E)-2-Butenal, 2-Butenal, 2-Buten-1-al, Bu-2-tenal, But-2-en-1-al, Crotonal, t-2-Butenal, CH3CH=CHCHO, Topanel, Topanel CA, Crotonaldehyde, predominantly trans
- CAS No.
- 123-73-9
- Jingsj CID
- J-11687-3
- Molecular Formula
- C4H6O
- Chinese Name
- 巴豆醛
- Molecular Weight
- 70.090 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −76 °C(lit.) |
|---|---|
| Boiling Point | 104.0±0.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 4.6±4.3 °C |
GHS Safety & Compliance
Flammable / Corrosion / Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
Frequently Asked Questions
What is the CAS number of Crotonaldehyde?
123-73-9
What are the molecular formula and molecular weight of Crotonaldehyde?
C4H6O, molecular weight 70.090 g/mol
Is Crotonaldehyde hazardous?
Danger
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026