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1-octylimidazole

Also known as: N-octylimidazole, 1-octyl-1H-imidazole, 1H-Imidazole, 1-octyl-, OIM, SKL1369, SKL1557

1-octylimidazole (CAS 21252-69-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H20N2 and a molecular weight of 180.29000 g/mol. Key properties include a boiling point of 302.4ºC at 760 mmHg, a density of 0.92 g/cm3 and a flash point of 136.7ºC. 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.
21252-69-7
Jingsj CID
J-1508314-2
Molecular Formula
C11H20N2
Molecular Weight
180.29000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point302.4ºC at 760 mmHg
Density0.92 g/cm3
Flash Point136.7ºC
Exact Mass180.16300
PSA17.82000
LogP3.24360
Vapor Pressure0.00178mmHg at 25°C
Refractive Index1.499

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2933290090
Summary2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-octylimidazole?

The CAS number of 1-octylimidazole is 21252-69-7.

What are the molecular formula and molecular weight of 1-octylimidazole?

1-octylimidazole has molecular formula C11H20N2 and molecular weight 180.29000 g/mol.

Is 1-octylimidazole hazardous?

1-octylimidazole 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 1-octylimidazole?

For 1-octylimidazole, Upstream Products: Imidazole, 1-Bromooctane, 1-Iodooctane; Downstream Products: 1-Methyl-3-octylimidazolium trifluoromethanesulfonate, 1-octyl-3-methylimidazolium tetrafluoroborate.

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

Last updated:

How to cite: Jingsj. "1-octylimidazole (CAS 21252-69-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1508314-2 (accessed 2026-11-07).

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