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| 3,4-Dimethyl-1,2-cyclopentanedione Basic information |
Product Name: | 3,4-Dimethyl-1,2-cyclopentanedione | Synonyms: | 2-Cyclopentanedione,3,4-dimethyl-1;3,4-dimethyl-2-cyclopentanedione;FEMA 3268;METHYL CORYLONE;3,4-DIMETHYL-1,2-CYCLOPENTANEDIONE 97%;3,4-dimethylcyclopentane-1,2-dione;2-hydroxy-3,4-dimethylcyclopent-2-en-1-one;3 4-DIMETHYL-1 2-CYCLOPENTADIONE 97+% | CAS: | 13494-06-9 | MF: | C7H10O2 | MW: | 126.15 | EINECS: | 236-810-8 | Product Categories: | Alphabetical Listings;C-D;API intermediates;Flavors and Fragrances | Mol File: | 13494-06-9.mol | |
| 3,4-Dimethyl-1,2-cyclopentanedione Chemical Properties |
Melting point | 68-72 °C(lit.) | Boiling point | 194.28°C (rough estimate) | density | 1.0579 (rough estimate) | FEMA | 3268 | 3,4-DIMETHYL-1,2-CYCLOPENTADIONE | refractive index | 1.4690 (estimate) | storage temp. | Inert atmosphere,2-8°C | solubility | Chloroform (Soluble), Methanol (Slightly) | form | Crystalline Powder | color | Slightly yellow to light beige | Odor | at 1.00 % in dipropylene glycol. sweet maple caramel sugar fenugreek licorice | Odor Type | caramellic | Water Solubility | slightly soluble | JECFA Number | 420 | LogP | 0.53 | CAS DataBase Reference | 13494-06-9(CAS DataBase Reference) | NIST Chemistry Reference | 1,2-Cyclopentanedione, 3,4-dimethyl-(13494-06-9) | EPA Substance Registry System | 1,2-Cyclopentanedione, 3,4-dimethyl- (13494-06-9) |
Safety Statements | 24/25 | WGK Germany | 3 | HS Code | 29142990 |
| 3,4-Dimethyl-1,2-cyclopentanedione Usage And Synthesis |
Chemical Properties | slightly yellow to light beige crystalline powder | Occurrence | Reported found as a constituent in coffee. | Uses | 3,4-Dimethyl-1,2-cyclopentanedione is a useful protective agent for food products. | Preparation | By alkylation of 3,5-dicarbetoxy-4-methyl-cyclopentane-1,2-dione followed by hydrolysis and decarboxylation of the
resulting 3,5-dicarbetoxy-3,4-dimethyl-cyclopentane-1,2-di-one | Aroma threshold values | Detection: 17 to 20 ppb | Taste threshold values | Taste characteristics at 10 ppm: brown, sweet, sugary, maple and caramellic. |
| 3,4-Dimethyl-1,2-cyclopentanedione Preparation Products And Raw materials |
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