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-METHYLCYCLOPENT-2-ENONE;2-HYDROXY-3-METHYL-2-CYCLOPENTENONE;Cycloten;FEMA 2700;Methyl cyclopentenolone ,99%
- CBNumber:
- CB1124237
- Molecular Formula:
- C6H8O2
- Molecular Weight:
- 112.13
- MDL Number:
- MFCD00013747
- MOL File:
- 80-71-7.mol
- MSDS File:
- SDS
| 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) |
| 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) |   GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H317-H318 | |||||||||
| Precautionary statements | P261-P264-P280-P301+P312-P302+P352-P305+P351+P338 | |||||||||
| 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 | |||||||||
| NFPA 704 |
|
Methyl cyclopentenolone price More Price(25)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W270015 | Methyl cyclopentenolone anhydrous, natural, 97%, FG | 80-71-7 | 100g | $85.5 | 2024-03-01 | Buy |
| Sigma-Aldrich | W270008 | Methyl cyclopentenolone anhydrous, 98%, FCC, FG | 80-71-7 | sample-k | $54.6 | 2024-03-01 | Buy |
| Sigma-Aldrich | W270015 | Methyl cyclopentenolone anhydrous, natural, 97%, FG | 80-71-7 | 1kg | $243 | 2024-03-01 | Buy |
| Sigma-Aldrich | W270008 | Methyl cyclopentenolone anhydrous, 98%, FCC, FG | 80-71-7 | 1kg | $152 | 2024-03-01 | Buy |
| Sigma-Aldrich | W270008 | Methyl cyclopentenolone anhydrous, 98%, FCC, FG | 80-71-7 | 5kg | $524 | 2024-03-01 | 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.
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
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Changzhou AniKare Pharmatech Co., Ltd. | +86-0519-8359-8696 +8618018249389 | sales@anikare.com | China | 9257 | 58 |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12450 | 58 |
| Hebei Guanlang Biotechnology Co,.LTD | +8619930503252 | daisy@crovellbio.com | China | 5828 | 58 |
| Hebei Fengjia New Material Co., Ltd | +86-0311-87836622 +86-17333973358 | sales06@hbduling.cn | China | 8079 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20294 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3002 | 58 |
| Hebei Shengyang Water Conservancy Engineering Co., Ltd. | +8615373025980 | clara@hbshengyang.com | China | 873 | 58 |
| Shandong Deshang Chemical Co., Ltd. | +86-0531-8875-2665 +8613153039501 | info@deshangchem.com | China | 619 | 58 |
| JINING XINHE CHEMICAL CO., LTD | +8615318402391 | sales@xinhepharma.com | China | 807 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21668 | 55 |
View Lastest Price from Methyl cyclopentenolone manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-08-24 | Methyl cyclopentenolone
80-71-7
|
US $500.00-300.00 / kg | 0.0010000000474974513kg | 99% | 5000 | HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD | |
 |
2024-08-23 | Methyl cyclopentenolone
80-71-7
|
US $8.00-5.00 / kg | 1kg | 99.99% | 10 tons | Shandong Deshang Chemical Co., Ltd. | |
 |
2024-08-22 | Methyl cyclopentenolone
80-71-7
|
US $0.00 / kg | 1kg | 95% | 10000kg | WUHAN FORTUNA CHEMICAL CO., LTD |
-
- Methyl cyclopentenolone
80-71-7
- US $500.00-300.00 / kg
- 99%
- HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
-
- Methyl cyclopentenolone
80-71-7
- US $8.00-5.00 / kg
- 99.99%
- Shandong Deshang Chemical Co., Ltd.
-
- Methyl cyclopentenolone
80-71-7
- US $0.00 / kg
- 95%
- WUHAN FORTUNA CHEMICAL CO., LTD