Crotonic acid
Also known as: (E)-but-2-enoic acid, trans-2-butenoic acid, trans-crotonic acid, beta-methylacrylic acid, ethylideneacetic acid, 2-butenoic acid, crotonate
Crotonic acid (CAS 107-93-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H6O2 and a molecular weight of 86.089 g/mol. Key properties include a melting point of 70-73ºC, a boiling point of 185-199 ºC, a density of 1.027 and a flash point of 88 ºC. It is classified under GHS with signal word Danger and hazard statements H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 107-93-7
- Jingsj CID
- J-39765-9
- Molecular Formula
- C4H6O2
- Molecular Weight
- 86.089 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 70-73ºC |
|---|---|
| Boiling Point | 185-199 ºC |
| Density | 1.027 |
| Flash Point | 88 ºC |
| Exact Mass | 86.036781 |
| PSA | 37.30000 |
| LogP | 0.80 |
| Additional Property | 2.97 (vs air) |
| Vapor Pressure | 0.5±0.7 mmHg at 25°C |
| Refractive Index | 1.449 |
| Additional Property | 94 g/L (25 ºC) |
GHS Safety & Compliance
- H318 — Causes serious eye damage
Customs & Trade Information
| HS Code | 29161940 |
|---|
Frequently Asked Questions
What is the CAS number of Crotonic acid?
The CAS number of Crotonic acid is 107-93-7.
What are the molecular formula and molecular weight of Crotonic acid?
Crotonic acid has molecular formula C4H6O2 and molecular weight 86.089 g/mol.
Is Crotonic acid hazardous?
Crotonic acid has GHS signal word Danger and hazard statements H318 — Causes serious eye damage.
What are the upstream and downstream products of Crotonic acid?
For Crotonic acid, Upstream Products: Methyl 4-bromocrotonate, Allyltriethylammonium bromide, 2-Buten-1-ol; Downstream Products: 2,3-dibromobutyric acid, Trimethylsilyl 4-trimethylsilylcrotonate, 3-Methyl-1-indanone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Crotonic acid (CAS 107-93-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39765-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.