2-Allylpent-4-enoic acid
Also known as: Diallylacetic acid, 2-Allyl-4-pentenoic acid, Valproic Acid Related Compound A, 2-(2-Propenyl)-4-pentenoic acid, 2-(prop-2-en-1-yl)pent-4-enoic acid, alpha,alpha-diallylacetic acid, bis-allyl acetic acid, 2-prop-2-enylpent-4-enoic acid
2-Allylpent-4-enoic acid (CAS 99-67-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H12O2 and a molecular weight of 140.180 g/mol. Key properties include a melting point of 48ºC, a boiling point of 237.1±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 134.4±13.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 99-67-2
- Jingsj CID
- J-1400585-7
- Molecular Formula
- C8H12O2
- Molecular Weight
- 140.180 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 48ºC |
|---|---|
| Boiling Point | 237.1±9.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 134.4±13.9 °C |
| Exact Mass | 140.083725 |
| PSA | 37.30000 |
| LogP | 2.22 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.462 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Customs & Trade Information
| HS Code | 2916190090 |
|---|---|
| Summary | 2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-Allylpent-4-enoic acid?
The CAS number of 2-Allylpent-4-enoic acid is 99-67-2.
What are the molecular formula and molecular weight of 2-Allylpent-4-enoic acid?
2-Allylpent-4-enoic acid has molecular formula C8H12O2 and molecular weight 140.180 g/mol.
Is 2-Allylpent-4-enoic acid hazardous?
2-Allylpent-4-enoic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Allylpent-4-enoic acid (CAS 99-67-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1400585-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.