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1-Undecanol

Also known as: Undecanol, Undecan-1-ol, Decyl carbinol, Hendecanol, Alcohol C-11 undecylic

1-Undecanol (CAS 112-42-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C11H24O and a molecular weight of 172.308 g/mol. Key properties include a melting point of 11 °C(lit.), a boiling point of 243.2±3.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 109.0±4.6 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H317 — May cause an allergic skin reaction and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
112-42-5
Jingsj CID
J-1322414-1
Molecular Formula
C11H24O
Molecular Weight
172.308 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point11 °C(lit.)
Boiling Point243.2±3.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point109.0±4.6 °C
Exact Mass172.182709
PSA20.23000
LogP4.59
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.438

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H411 — Toxic to aquatic life with long lasting effects

Activity & Biological Data

Additional Information[1]. Forney FW, et al. Bacterial oxidation of 2-tridecanone to 1-undecanol. J Bacteriol. 1967 Feb;93(2):649-55.

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 1-Undecanol?

The CAS number of 1-Undecanol is 112-42-5.

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

1-Undecanol has molecular formula C11H24O and molecular weight 172.308 g/mol.

Is 1-Undecanol hazardous?

1-Undecanol has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H411 — Toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of 1-Undecanol?

For 1-Undecanol, Upstream Products: 10-Undecen-1-ol, Undecanal, Methyl 10-undecenoate; Downstream Products: 1-Iodoundecane, 3,4-DI-O-ACETYL-D-XYLAL,, Undecane, 1-(undecyloxy)-.

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-Undecanol (CAS 112-42-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1322414-1 (accessed 2026-11-09).

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