trans-2-Methyl-2-pentenoic acid
Also known as: (2E)-2-Methyl-2-pentenoic acid, (E)-2-Methyl-2-pentenoic acid, 2-Methyl-2-pentenoic acid, FEMA 3195, STRAWBERRIFF, MFCD00002655, EINECS 241-026-4
trans-2-Methyl-2-pentenoic acid (CAS 16957-70-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H10O2 and a molecular weight of 114.142 g/mol. Key properties include a melting point of 26-28ºC, a boiling point of 215.9±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 107.8±0.0 °C. 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.
- 16957-70-3
- Jingsj CID
- J-34858-3
- Molecular Formula
- C6H10O2
- Molecular Weight
- 114.142 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 26-28ºC |
|---|---|
| Boiling Point | 215.9±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 107.8±0.0 °C |
| Exact Mass | 114.068077 |
| PSA | 37.30000 |
| LogP | 1.89 |
| Additional Property | >1 (vs air) |
| Vapor Pressure | 0.1±0.8 mmHg at 25°C |
| Refractive Index | 1.454 |
| Additional Property | insoluble |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
Activity & Biological Data
| Additional Information | [1]. Li W, et al. A concise formal total synthesis of lactimidomycin. Chem Commun (Camb). 2015 May 21;51(41):8634-6. |
|---|
Frequently Asked Questions
What is the CAS number of trans-2-Methyl-2-pentenoic acid?
The CAS number of trans-2-Methyl-2-pentenoic acid is 16957-70-3.
What are the molecular formula and molecular weight of trans-2-Methyl-2-pentenoic acid?
trans-2-Methyl-2-pentenoic acid has molecular formula C6H10O2 and molecular weight 114.142 g/mol.
Is trans-2-Methyl-2-pentenoic acid hazardous?
trans-2-Methyl-2-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 trans-2-Methyl-2-pentenoic acid?
For trans-2-Methyl-2-pentenoic acid, Upstream Products: 2-Methyl-2-pentenal, Methyl (2E)-2-methyl-2-pentenoate; Downstream Products: Ethyl 2-methylpentanoate, 2-Methyl-1-pentanol, Methyl (2E)-2-methyl-2-pentenoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "trans-2-Methyl-2-pentenoic acid (CAS 16957-70-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34858-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.