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Methyl cyclopentenolone

Methyl cyclopentenolone
Methyl cyclopentenolone structure
CAS No.
80-71-7
Chemical Name:
Methyl cyclopentenolone
Synonyms
Corylon;Corylone;Cycloten;CYCLOTENE;FEMA 2700;opentenoL;RARECHEM AQ C5 0001;MethylCyclopetenolone;METHYL CYCLOPENTENOLONE;Methlyl cyclopentenolone
CBNumber:
CB1124237
Molecular Formula:
C6H8O2
Formula Weight:
112.13
MOL File:
80-71-7.mol

Methyl cyclopentenolone Properties

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)
Flash point:
100°C
storage temp. 
Store at +2°C to +8°C.
pka
9.21±0.20(Predicted)
form 
neat
color 
White crystalline powder or fine crystals
JECFA Number
418
CAS DataBase Reference
80-71-7(CAS DataBase Reference)
FDA UNII
627E92X64B
NIST Chemistry Reference
2-Cyclopenten-1-one, 2-hydroxy-3-methyl-(80-71-7)
EPA Substance Registry System
Maple lactone (80-71-7)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07,GHS08
Signal word  Danger
Hazard statements  H315-H319-H334-H335
Precautionary statements  P261-P305+P351+P338-P342+P311
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

Methyl cyclopentenolone price More Price(12)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 80133 Methyl cyclopentenolone analytical standard 80-71-7 100mg $142 2019-12-02 Buy
Sigma-Aldrich W270008 Methyl cyclopentenolone anhydrous, 98%, FCC, FG 80-71-7 sample-k $40 2019-12-02 Buy
TCI Chemical H0469 2-Hydroxy-3-methyl-2-cyclopentenone >98.0%(T) 80-71-7 25g $52 2020-06-24 Buy
Sigma-Aldrich W270008 Methyl cyclopentenolone anhydrous, 98%, FCC, FG 80-71-7 100g-k $70 2019-12-02 Buy
Sigma-Aldrich W270015 Methyl cyclopentenolone anhydrous, natural, 97%, FG 80-71-7 100g-k $70 2019-12-02 Buy

Methyl cyclopentenolone Chemical Properties,Uses,Production

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.

Chemical Properties

Off-white solid

Occurrence

Reported to be found during the dry distillation of wood and in the corresponding tar oil. It has also been identified in fenugreek (FenaroWs Handbook of Flavor Ingredients, 1975).

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.

Preparation

By ketonic hydrolysis of the corresponding dicarboxylic ester (Arctander, 1969)

Toxicity evaluation

The acute oral LD50 value in guinea-pigs was reported as 1.4 g/kg (Dow Chemical Company, 1953) and that in rats as > 1.85 g/kg, while the acute dermal LD50 value in guinea-pigs exceeded 2 g/kg (Moreno, 1976). Methylcyclopentenolone was lethal to mice and rats at ip doses of 0.5-1 g/kg (Shugaev, 1959), and at a concentration of 7 χ 10-4 m was toxic to cultured human leucocytes (Withers, 1966).

Methyl cyclopentenolone Preparation Products And Raw materials

Raw materials

Preparation Products


Methyl cyclopentenolone Suppliers

Global( 188)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 2680 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30043 58
Zhengzhou Yuanli Biological Technology Co., Ltd
0086-371-67897895
info@zzyuanli.cn CHINA 136 58
Chemwill Asia Co.,Ltd.
86-21-51086038
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Hubei Jusheng Technology Co.,Ltd.
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027-59599243 linda@hubeijusheng.com CHINA 28231 58
Haihang Industry Co.,Ltd
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hdzhl biotechnology co., ltd
86-13032617415
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Hebei Aicrowe Biotech Co., Ltd
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Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23045 58
Shandong chuangyingchemical Co., Ltd.
18853181302
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View Lastest Price from Methyl cyclopentenolone manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-05-20 Top quality Methyl cyclopentenolone 80-71-7 kf-wang(at)kf-chem.com
80-71-7
US $20.00 / Kg/Drum 1g 99.6% 20000 Hebei Aicrowe Biotech Co., Ltd
2020-01-19 Methyl cyclopentenolone
80-71-7
US $0.00-0.00 / KG 100g 99.0%+ 100 tons Shaanxi Dideu Medichem Co. Ltd
2018-08-04 Methyl cyclopentenolone
80-71-7
US $500.00 / KG 1KG 98% 1ton career henan chemical co

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