Methyl Cyclopentenolone

Product Name:

Methyl cyclopentenolone

Synonyms:

Top quality Methyl cyclopentenolone 80-71-7 kf-wang(at)kf-chem.com;RARECHEM AQ C5 0001;FEMA 2700;CYCLOTENE;METHYL CYCLOPENTENOLONE;3-METHYL-2-HYDROXY-2-CYCLOPENTENONE;3-METHYL-2-CYCLOPENTENON-2-OL;2-HYDROXY-3-METHYLCYCLOPENT-2-ENONE

CAS:

80-71-7

MF:

C6H8O2

MW:

112.13

EINECS:

201-303-2

Product Categories:

alcohol Flavor;insect pheromone

Mol File:

80-71-7.mol

Melting point 

104-108°C

Boiling point 

170.05°C (rough estimate)

density 

1.0795 (rough estimate)

FEMA 

2700 | METHYLCYCLOPENTENOLONE

refractive index 

1.4532 (estimate)

Fp 

100°C

storage temp. 

Store at +2°C to +8°C.

pka

9.21±0.20(Predicted)

form 

neat

JECFA Number

418

CAS DataBase Reference

80-71-7(CAS DataBase Reference)

NIST Chemistry Reference

2-Cyclopenten-1-one, 2-hydroxy-3-methyl-(80-71-7)

EPA Substance Registry System

Maple lactone (80-71-7)

Hazard Codes 

Xi

Risk Statements 

36/37/38-43

Safety Statements 

26-36/37-24/25-22

WGK Germany 

3

RTECS 

GY7298000

HS Code 

29144090

Chemical Properties

Off-white solid

Chemical Properties

Methyl cyclopentenolone occurs in beechwood tar and has a caramel-like (burnt sugar) odor. It has been identified as a flavor component in food. Crystals of the compound usually contain 1 mol of water. Synthetic routes of production are of limited importance in comparison with isolation from beechwood tar. Homologs of cyclotene such as 3-ethyl-2-hydroxy-2-cyclopenten-1-one, C7H10O2, Mr 126.16, 2-hydroxy-3,4-dimethyl-2-cyclopenten-1-one, C7H10O2, Mr 126.16, and 2-hydroxy-3,5-dimethyl-2-cyclopenten-1-one, C7H10O2, Mr 126.16, are also used as flavor ingredients and have similar caramel-like properties.
Cyclotene and its homologs are frequently used in flavor compositions for its caramel note, for example, in beverages and in confectionery.

Uses

Methyl Cyclopentenolone is a flavoring agent that is a white crys- talline powder. it has a nutty odor suggesting a maple-licorice aroma when diluted. it is soluble in alcohol and propylene glycol, slightly soluble in most fixed oils, and sparingly soluble in water. it is obtained by synthesis. it is also termed 3-methyl-cyclopentane-1,2-dione.

Raw materials

Dimethylamine-->Cyclopentanone-->2-Methylfuran-->2-METHYL-2-CYCLOPENTEN-1-ONE