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2-Undecanol

Also known as: undecan-2-ol, Methyl nonyl carbinol, sec-Undecyl Alcohol, 2-Hendecyl alcohol, DL-2-UNDECANOL, (±)-undecan-2-ol

2-Undecanol (CAS 1653-30-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C11H24O and a molecular weight of 172.30800 g/mol. Key properties include a melting point of 2-3 °C, a boiling point of 130-131 °C28 mm Hg(lit.), a density of 0.828 g/mL at 25 °C(lit.) and a flash point of 107.8 °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 Nov 2, 2026.

CAS No.
1653-30-1
Jingsj CID
J-18244-5
Molecular Formula
C11H24O
Molecular Weight
172.30800 g/mol
Category
Alcohols
Last updated
11/2/2026

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Physicochemical Properties

Melting Point2-3 °C
Boiling Point130-131 °C28 mm Hg(lit.)
Density0.828 g/mL at 25 °C(lit.)
Flash Point107.8 °C
Exact Mass172.18300
PSA20.23000
LogP3.50790
Vapor Pressure0.0147mmHg at 25°C
Refractive Indexn20/D 1.437(lit.)

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H411 — Toxic to aquatic life with long lasting effects

Activity & Biological Data

Additional Information[1]. Antonioni A C Moliterno, et al. The Male Produced Aggregation Pheromone of a Strawberry Sap Beetle, Lobiopa Insularis (Coleoptera: Nitidulidae). J Chem Ecol. 2017 Jun;43(6):550-556.

Customs & Trade Information

HS Code2905199090
Summary2905199090. saturated monohydric alcohols. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-Undecanol?

The CAS number of 2-Undecanol is 1653-30-1.

What are the molecular formula and molecular weight of 2-Undecanol?

2-Undecanol has molecular formula C11H24O and molecular weight 172.30800 g/mol.

Is 2-Undecanol hazardous?

2-Undecanol has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

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

Last updated:

How to cite: Jingsj. "2-Undecanol (CAS 1653-30-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18244-5 (accessed 2026-11-09).

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