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Methyl (E)-3-pentenoate

Also known as: Methyl trans-3-pentenoate, Methyl (E)-pent-3-enoate, Methyl 3-pentenoate, METHYL TRANS-3-PENTENOATE, METHYL (E)-PENT-3-ENOATE, METHYL TRANS-PENTENOIC ACID, 3-PENTENOIC ACID METHYL ESTER, Methyl trans-3-Pentenoate

Methyl (E)-3-pentenoate (CAS 20515-19-9) 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 boiling point of 120.8±9.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 45.9±17.1 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20515-19-9
Jingsj CID
J-17695-4
Molecular Formula
C6H10O2
Molecular Weight
114.142 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point120.8±9.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point45.9±17.1 °C
Exact Mass114.068077
PSA26.30000
LogP1.53
Vapor Pressure15.0±0.2 mmHg at 25°C
Refractive Index1.422

GHS Safety & Compliance

FlammableSignal word: Warning
  • H226 — Flammable liquid and vapour

Frequently Asked Questions

What is the CAS number of Methyl (E)-3-pentenoate?

The CAS number of Methyl (E)-3-pentenoate is 20515-19-9.

What are the molecular formula and molecular weight of Methyl (E)-3-pentenoate?

Methyl (E)-3-pentenoate has molecular formula C6H10O2 and molecular weight 114.142 g/mol.

Is Methyl (E)-3-pentenoate hazardous?

Methyl (E)-3-pentenoate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.

What are the upstream and downstream products of Methyl (E)-3-pentenoate?

For Methyl (E)-3-pentenoate, Upstream Products: Methanol, γ-Valerolactone, Diazomethane; Downstream Products: Methyl levulinate, Methyl 6-oxohexanoate, methyl valerate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Methyl (E)-3-pentenoate (CAS 20515-19-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17695-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.