13494-06-9

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-CYCLOPENTADIONE;3,4-DIMETHYL-1,2-CYCLOPENTANEDIONE;3,4-DIMETHYL-2-HYDROXY-2-CYCLOPENTENYL-1-ONE;3,4-dimethylcyclopentane-1,2-dione
• CAS NO: 13494-06-9
• Molecular Formula: C7H10O2
• Molecular Weight: 126.15
• EINECS: 236-810-8
• Product Categories: API intermediates;Alphabetical Listings;C-D;Flavors and Fragrances
• Mol File: 13494-06-9.mol
• Article Data: 0

Chemical Properties

• Melting Point: 68-72 °C(lit.)
• Boiling Point: 194.28°C (rough estimate)
• Flash Point: 63.6 °C
• Appearance: Slightly yellow to light beige/Crystalline Powder
• Density: 1.0579 (rough estimate)
• Vapor Pressure: 0.633mmHg at 25°C
• Refractive Index: 1.4690 (estimate)
• Storage Temp.: 0-6°C
• Solubility: Chloroform (Soluble), Methanol (Slightly)
• Water Solubility: slightly soluble
• CAS DataBase Reference: 3,4-Dimethyl-1,2-cyclopentanedione(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-Dimethyl-1,2-cyclopentanedione(13494-06-9)
• EPA Substance Registry System: 3,4-Dimethyl-1,2-cyclopentanedione(13494-06-9)

Safety Data

• Safety Statements: 24/25
• WGK Germany: 3
• Hazardous Substances Data: 13494-06-9(Hazardous Substances Data)

Usage

Description

3,4-Dimethyl-1,2-cyclopentanedione is an organic compound that is characterized by its distinct brown, sweet, sugary, maple, and caramellic taste. It is known for its low aroma threshold values, which makes it a valuable component in the flavor and fragrance industry. 3,4-Dimethyl-1,2-cyclopentanedione has been reported to be found as a constituent in coffee, adding to its natural and appealing taste profile.

Uses

Used in Flavor and Fragrance Industry:
3,4-Dimethyl-1,2-cyclopentanedione is used as a flavoring agent for its unique taste characteristics, which include brown, sweet, sugary, maple, and caramellic notes. Its low aroma threshold values make it an ideal component for creating various flavors in the food and beverage industry.
Used in Food Preservation:
3,4-Dimethyl-1,2-cyclopentanedione is used as a protective agent for food products, helping to extend their shelf life and maintain their quality. Its presence in coffee as a natural constituent further highlights its potential applications in the food industry.
Used in Coffee Industry:
As a constituent found in coffee, 3,4-Dimethyl-1,2-cyclopentanedione is used to enhance the natural flavor and aroma of coffee beverages. Its addition can contribute to a richer and more complex taste profile, making it a valuable asset in the coffee industry.

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

InChI:InChI=1/C7H10O2/c1-4-3-6(8)7(9)5(4)2/h4-5H,3H2,1-2H3/t4-,5+/m1/s1