5-Hexen-1-ol

Synonym(s):5-Hexenol

CAS NO.：821-41-0
Empirical Formula: C6H12O
Molecular Weight: 100.16
MDL number: MFCD00002981
EINECS: 212-477-4
SAFETY DATA SHEET (SDS)
Update Date: 2026-04-24 14:58:21

What is 5-Hexen-1-ol?

Chemical properties

Clear, colorless liquid with a green aroma.

The Uses of 5-Hexen-1-ol

5-Hexen-1-ol is used in cyclization to a tetrahydropyran by phenylselenoetherification. It is also used as a building block in synthetic chemistry. Further, it is used to prepare 6-bromo-hex-1-ene by reaction with phosphorus tribromide.

What are the applications of Application

5-Hexen-1-ol is also known as 5-Hexenol; an organic building block

Preparation

5-hexen-1-ol may be prepared from 2-(chloromethyl)tetrahydropyran according to the literature procedure for the preparation of 4-penten-1-ol (Brooks, L. A.; Snyder, H. R. Org. Synth. Coll. Vol. III 1955, 698).

What are the applications of Application

5-Hexen-1-ol is used as a food flavouring agent and as a raw material in organic synthesis for cyclisation to other compounds such as tetrahydropyran via phenylselenide etherification.

Aroma threshold values

Medium strength odor; recommend smelling in a 10.00% solution or less

Properties of 5-Hexen-1-ol

Melting point:	<-20°C
Boiling point:	78-80 °C/25 mmHg (lit.)
Density	0.834 g/mL at 25 °C (lit.)
refractive index	n20/D 1.435(lit.)
FEMA	4351 \| 5-HEXENOL
Flash point:	117 °F
storage temp.	Sealed in dry,2-8°C
solubility	18.6g/l
form	Liquid
pka	15.17±0.10(Predicted)
Specific Gravity	0.846
color	Clear colorless
PH	7 (H2O)
Odor	green
Water Solubility	Miscible with water.
JECFA Number	1623
BRN	1236458
Stability:	Volatile
CAS DataBase Reference	821-41-0(CAS DataBase Reference)
EPA Substance Registry System	5-Hexen-1-ol (821-41-0)

Safety information for 5-Hexen-1-ol

Signal word	Danger
Pictogram(s)	Flame Flammables GHS02 Corrosion Corrosives GHS05
GHS Hazard Statements	H226:Flammable liquids H314:Skin corrosion/irritation
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.