Methyl cyclopentenolone
- Product Name
- Methyl cyclopentenolone
- CAS No.
- 80-71-7
- Chemical Name
- Methyl cyclopentenolone
- Synonyms
- 2-Cyclopenten-1-one, 2-hydroxy-3-methyl-;CYCLOTENE;Corylon;Corylone;2-Hydroxy-3-methylcyclopent-2-en-1-one;2-HYDROXY-3-METHYL-2-CYCLOPENTENONE;2-HYDROXY-3-METHYLCYCLOPENT-2-ENONE;Cycloten;FEMA 2700;Methyl cyclopentenolone ,99%
- CBNumber
- CB1124237
- Molecular Formula
- C6H8O2
- Formula Weight
- 112.13
- MOL File
- 80-71-7.mol
Methyl cyclopentenolone Property
- Melting point:
- 104-108°C
- Boiling point:
- 170.05°C (rough estimate)
- Density
- 1.0795 (rough estimate)
- vapor pressure
- 2.1hPa at 20℃
- FEMA
- 2700 | METHYLCYCLOPENTENOLONE
- refractive index
- 1.4532 (estimate)
- Flash point:
- 100°C
- storage temp.
- Store at +2°C to +8°C.
- solubility
- Chloroform (Slightly), Methanol (Slightly)
- pka
- 9.21±0.20(Predicted)
- color
- White crystalline powder or fine crystals
- Odor
- at 1.00 % in dipropylene glycol. caramel maple syrup
- Odor Type
- caramellic
- JECFA Number
- 418
- LogP
- 0.4 at 25℃
- 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)
Safety
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H302Harmful if swallowed
H317May cause an allergic skin reaction
H318Causes serious eye damage
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- W270015
- Product name
- Methyl cyclopentenolone
- Purity
- anhydrous, natural, 97%, FG
- Packaging
- 100g
- Price
- $85.5
- Updated
- 2024/03/01
- Product number
- W270008
- Product name
- Methyl cyclopentenolone
- Purity
- anhydrous, 98%, FCC, FG
- Packaging
- sample-k
- Price
- $54.6
- Updated
- 2024/03/01
- Product number
- W270015
- Product name
- Methyl cyclopentenolone
- Purity
- anhydrous, natural, 97%, FG
- Packaging
- 1kg
- Price
- $243
- Updated
- 2024/03/01
- Product number
- W270008
- Product name
- Methyl cyclopentenolone
- Purity
- anhydrous, 98%, FCC, FG
- Packaging
- 1kg
- Price
- $152
- Updated
- 2024/03/01
- Product number
- W270008
- Product name
- Methyl cyclopentenolone
- Purity
- anhydrous, 98%, FCC, FG
- Packaging
- 5kg
- Price
- $524
- Updated
- 2024/03/01
Methyl cyclopentenolone Chemical Properties,Usage,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.
Uses
Methyl cyclopentenolone may be used as an analytical reference standard for the quantification of the analyte in commercial products using different chromatography techniques.
Preparation
By ketonic hydrolysis of the corresponding dicarboxylic ester (Arctander, 1969)
Application
Methyl cyclopentenolone is used sparingly in perfume compositions often in combination with Coumarin or Coumarin derivatives. It is an excellent fortifier for such materials in Lavender fragrances, New Mown Hay, "tabac" type fragrances, spicy bases, etc. It falls naturally into Celery seed oil, Lovage, Fenugreek, Tonka, Liatris, Flouve, etc. It is, however, in flavor compositions that Methyl cyclopentenolone has found its truly extensive application.
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).
General Description
Methyl cyclopentenolone is one of the flavor compounds of maple syrup, coffee oil and wood smoke. It is reported to be one the key aroma compounds in Wasanbon sugar, contributing to the maple-like flavor. Methyl cyclopentenolone is also one of the major volatile compound formed during the thermal degradation of glucose.
Methyl cyclopentenolone Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Methyl cyclopentenolone manufacturers
- Product
- Methyl cyclopentenolone 80-71-7
- Price
- US $500.00-300.00/kg
- Min. Order
- 0.0010000000474974513kg
- Purity
- 99%
- Supply Ability
- 5000
- Release date
- 2024-08-23
- Product
- Methyl cyclopentenolone 80-71-7
- Price
- US $10.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20ton
- Release date
- 2024-05-13
- Product
- Methyl cyclopentenolone 80-71-7
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 95%
- Supply Ability
- 10000kg
- Release date
- 2023-01-14