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trans-Vaccenic acid methyl ester

Also known as: Methyl trans-11-octadecenoate, Methyl (E)-octadec-11-enoate, (E)-11-Octadecenoic acid methyl ester, (E)-Vaccenic acid methyl ester, Methyl trans-vaccenate, trans-11-Octadecenoic acid methyl ester, Methyl (11E)-11-octadecenoate, Methyl (11E)-octadec-11-enoate, Trans-11-octadecenoic acid methyl ester, Trans-vaccenic acid methyl ester

trans-Vaccenic acid methyl ester (CAS 6198-58-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C19H36O2 and a molecular weight of 296.488 g/mol. Key properties include a melting point of 10°C(lit.), a boiling point of 351.3±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 62.2±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6198-58-9
Jingsj CID
J-1969930-0
Molecular Formula
C19H36O2
Molecular Weight
296.488 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point10°C(lit.)
Boiling Point351.3±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point62.2±0.0 °C
Exact Mass296.271515
PSA26.30000
LogP8.16
Appearanceliquid
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.454
Storage Conditions−20°C

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of trans-Vaccenic acid methyl ester?

The CAS number of trans-Vaccenic acid methyl ester is 6198-58-9.

What are the molecular formula and molecular weight of trans-Vaccenic acid methyl ester?

trans-Vaccenic acid methyl ester has molecular formula C19H36O2 and molecular weight 296.488 g/mol.

Is trans-Vaccenic acid methyl ester hazardous?

trans-Vaccenic acid methyl ester has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of trans-Vaccenic acid methyl ester?

For trans-Vaccenic acid methyl ester, Upstream Products: Heptanal, Methyl 11-bromoundecanoate, 11-Bromoundecanoic acid; Downstream Products: trans-Vaccenic 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. "trans-Vaccenic acid methyl ester (CAS 6198-58-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1969930-0 (accessed 2026-11-09).

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