2-PENTYL-2-CYCLOPENTEN-1-ONE Chemical Properties

Boiling point:

114-116 °C15 mm Hg(lit.)

Density 

0.921 g/mL at 25 °C(lit.)

vapor pressure 

3.6Pa at 20℃

refractive index 

n20/D 1.473(lit.)

Flash point:

205 °F

storage temp. 

Sealed in dry,Room Temperature

form 

clear liquid

color 

Colorless to Light orange to Yellow

Odor

at 100.00 %. woody isojasmone jasmin tuberose

Odor Type

floral

LogP

2.8

CAS DataBase Reference

25564-22-1(CAS DataBase Reference)

EPA Substance Registry System

2-Pentyl-2-cyclopenten-1-one (25564-22-1)

Safety Information

WGK Germany 

2

RTECS 

GY7310000

HS Code 

2914290090

Toxicity

LD50 orl-rat: 2200 mg/kg FCTOD7 30,7S,92

MSDS

• Language:English Provider:SigmaAldrich

2-PENTYL-2-CYCLOPENTEN-1-ONE Usage And Synthesis

Chemical Properties

Amyl cyclopentenone is a colorless or very pale straw-colored liquid.Insoluble in water.

Uses

Amyl cyclopentenone is suggested for use in perfume compositions, primarily in the creation of artificial Jasmin, Jasmin bases, specialties, etc. It can also be used as a floralizer for fragrances other than those of the Jasmin type, mainly in the milder florals, and in a few sharper ones, such as Hyacinth.

Preparation

Amyl cyclopentenone is prepared from Decenoic acid by treatment with Phosphoric acid.

Synthesis Reference(s)

The Journal of Organic Chemistry, 43, p. 4248, 1978 DOI: 10.1021/jo00415a061
Tetrahedron Letters, 19, p. 4661, 1978 DOI: 10.1016/S0040-4039(01)85698-7
Synthetic Communications, 11, p. 7, 1981 DOI: 10.1080/00397918108064276

Safety Profile

Moderately toxic by ingestion. Low toxicity by skin contact. When heated to decomposition it emits acrid smoke and irritating vapors.

Solubility in organics

Soluble in alcohol, miscible with perfume oils.

2-PENTYL-2-CYCLOPENTEN-1-ONE(25564-22-1)Related Product Information

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