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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) | | refractive index | 1.4690 (estimate) | | FEMA | 3268 | 3,4-DIMETHYL-1,2-CYCLOPENTADIONE | | storage temp. | Inert atmosphere,2-8°C | | solubility | Chloroform (Soluble), Methanol (Slightly) | | form | Crystalline Powder | | color | Slightly yellow to light beige | | Water Solubility | slightly soluble | | JECFA Number | 420 | | 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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