trans-2-Octen-1-ol

CAS NO.：18409-17-1
Empirical Formula: C8H16O
Molecular Weight: 128.21
MDL number: MFCD00014057
EINECS: 242-288-2
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-13 11:23:53

What is trans-2-Octen-1-ol?

Chemical properties

clear colorless liquid

Occurrence

Reported present in apple, bilberry, cranberry, guava, orange, grape, melon, peas, strawberry jam, potato, roasted turkey and chicken, cognac, rum, tea, cloudberry, mushroom, kelp, malt, dried bonito and endive.

Definition

ChEBI: (E)-oct-2-en-1-ol is a medium-chain primary fatty alcohol that is (E)-2-octene substituted by a hydroxy group at position 1. It has a role as a flavouring agent and a fragrance. It is an alkenyl alcohol, a medium-chain primary fatty alcohol and a primary allylic alcohol.

Aroma threshold values

Detection: 40 to 840 ppb; recognition: 100 ppb. Aroma characteristics at 1.0%: oily, slightly nutty, fatty waxy, stale creamy, chicken fatty with an old cucumber green nuance.

Taste threshold values

Taste characteristics at 1 to 5 ppm: green, slightly oxidized, oily and nutty, chicken fatty, goaty and creamy on dry out with a cucumber rind nuance.

Synthesis Reference(s)

Journal of the American Chemical Society, 95, p. 2715, 1973 DOI: 10.1021/ja00789a068
Tetrahedron Letters, 19, p. 1145, 1978

Properties of trans-2-Octen-1-ol

Melting point:	-31.5°C (estimate)
Boiling point:	85-87 °C/10 mmHg (lit.)
Density	0.843 g/mL at 25 °C (lit.)
refractive index	n20/D 1.4460(lit.)
FEMA	3887 \| (E)-2-OCTEN-1-OL
Flash point:	198 °F
storage temp.	Sealed in dry,Room Temperature
form	Liquid
pka	14.49±0.10(Predicted)
color	colorless
Odor	at 1.00 % in dipropylene glycol. green citrus vegetable fatty
Water Solubility	Insoluble
JECFA Number	1370
BRN	1720707
CAS DataBase Reference	18409-17-1(CAS DataBase Reference)
NIST Chemistry Reference	2-Octen-1-ol, (e)-(18409-17-1)
EPA Substance Registry System	(E)-2-Octen-1-ol (18409-17-1)

Safety information for trans-2-Octen-1-ol

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.