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11-Bromo-1-undecene

Also known as: 11-Undecen-1-yl bromide, 11-bromoundec-1-ene, 1-Bromo-10-undecene, 10-Undecenyl bromide, NSC 139878, Undec-10-enyl bromide, undecylenyl bromide, w-undecylenyl bromide, MFCD00040825

11-Bromo-1-undecene (CAS 7766-50-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H21Br and a molecular weight of 233.188 g/mol. Key properties include a boiling point of 251.6±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 110.3±6.7 °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.
7766-50-9
Jingsj CID
J-21939-6
Molecular Formula
C11H21Br
Molecular Weight
233.188 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point251.6±9.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point110.3±6.7 °C
Exact Mass232.082657
LogP5.95
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.466

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 11-Bromo-1-undecene?

The CAS number of 11-Bromo-1-undecene is 7766-50-9.

What are the molecular formula and molecular weight of 11-Bromo-1-undecene?

11-Bromo-1-undecene has molecular formula C11H21Br and molecular weight 233.188 g/mol.

Is 11-Bromo-1-undecene hazardous?

11-Bromo-1-undecene 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 11-Bromo-1-undecene?

For 11-Bromo-1-undecene, Upstream Products: 10-Undecen-1-ol, 10-Undecenoic acid, 1,8-Dibromooctane; Downstream Products: (11-Bromoundecyl)(chloro)dimethylsilane, (Z)-hexadec-11-en-1-ol, 12-methyl-1-tridecanol.

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

Last updated:

How to cite: Jingsj. "11-Bromo-1-undecene (CAS 7766-50-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21939-6 (accessed 2026-11-09).

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