3-Pentenoic acid
Also known as: trans-3-Pentenoic acid, (E)-Pent-3-enoic acid, pent-3-enoic acid, 1-Propenylacetic acid, Ethylidenepropionic acid, RARECHEM AL BO 0169, CH3CH=CHCH2COOH
3-Pentenoic acid (CAS 5204-64-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H8O2 and a molecular weight of 100.11600 g/mol. Key properties include a boiling point of 192ºC at 760mmHg, a density of 1.008g/cm3 and a flash point of 89.5ºC. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5204-64-8
- Jingsj CID
- J-1353513-2
- Molecular Formula
- C5H8O2
- Molecular Weight
- 100.11600 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 192ºC at 760mmHg |
|---|---|
| Density | 1.008g/cm3 |
| Flash Point | 89.5ºC |
| Exact Mass | 100.05200 |
| PSA | 37.30000 |
| LogP | 1.03720 |
| Refractive Index | n20/D 1.435 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
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 3-Pentenoic acid?
The CAS number of 3-Pentenoic acid is 5204-64-8.
What are the molecular formula and molecular weight of 3-Pentenoic acid?
3-Pentenoic acid has molecular formula C5H8O2 and molecular weight 100.11600 g/mol.
Is 3-Pentenoic acid hazardous?
3-Pentenoic acid has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 3-Pentenoic acid?
For 3-Pentenoic acid, Upstream Products: butadiene, γ-Valerolactone, Propionaldehyde; Downstream Products: pent-3-enenitrile, Adipic acid, 2-Methylglutaric 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. "3-Pentenoic acid (CAS 5204-64-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1353513-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.