21834-98-0

Basic information

• Product Name: FEMA 3269
• Synonyms: 2-Hydroxy-3,5-dimethyl-2-cyclopenten-1-one;2-Hydroxy-3,5-dimethylcyclopent-2-en-1-one;3,5-DIMETHYL-2-HYDROXY-2-CYCLOPENTENYL-1-ONE;3,5-DIMETHYL-1,2-CYCLOPENTADIONE;FEMA 3269;CORONOL;3,5-DIMETHYL-1,2-CYCLOPENTANEDIONE 97%;3,5-Dimethyl-2-hydroxy-2-cyclopenten-1-one
• CAS NO: 21834-98-0
• Molecular Formula: C₇H₁₀O₂
• Molecular Weight: 126.15
• EINECS: 236-811-3
• Mol File: 21834-98-0.mol
• Article Data: 4

Chemical Properties

• Melting Point: 87-95 °C(lit.)
• Boiling Point: 194.28°C (rough estimate)
• Flash Point: 101°C
• Appearance: /
• Density: 1.0579 (rough estimate)
• Vapor Pressure: 0.633mmHg at 25°C
• Refractive Index: 1.4690 (estimate)
• Storage Temp.: 0-6°C
• PKA: 9.22±0.40(Predicted)
• CAS DataBase Reference: FEMA 3269(CAS DataBase Reference)
• NIST Chemistry Reference: FEMA 3269(21834-98-0)
• EPA Substance Registry System: FEMA 3269(21834-98-0)

Safety Data

• Safety Statements: 24/25
• WGK Germany: 3
• Hazardous Substances Data: 21834-98-0(Hazardous Substances Data)

Usage

General Description

FEMA 3269, also known as 2,3-Butanedione, is a chemical compound commonly used as a flavoring agent in the food and beverage industry. It is a yellow to amber liquid with a strong, buttery aroma and taste, often described as reminiscent of buttered popcorn. FEMA 3269 is considered safe for consumption in small amounts, and is commonly used in a variety of food products such as baked goods, dairy products, and flavored beverages. However, prolonged exposure to high levels of 2,3-Butanedione has been linked to respiratory issues and other health concerns, leading to increased scrutiny and regulatory measures within the industry.

InChI:InChI=1/C7H10O2/c1-4-3-5(2)7(9)6(4)8/h4-5H,3H2,1-2H3/t4-,5-/m0/s1

Upstream product

• 50462-15-2 3,5-Dimethyl-1,2-bis(trimethylsiloxy)-1-cyclopenten 
• 21239-22-5 Diethyl 2,4-dimethylglutarate 
• 92243-49-7 5-Formyl-2-methoxy-3-methyl-cyclopent-2-en-1-on 
• 14189-85-6 2-methoxy-3-methylcyclopent-2-en-1-one 
• 80-71-7 2-hydroxy-3-methylcyclopent-2-en-1-one 
• 10088-87-6 4,5-dioxo-cyclopentane-1,3-dicarboxylic acid diethyl ester 
• 74-88-4 methyl iodide 
• 57493-14-8 2-Hydroxy-5-methyl-3,5-bis-piperidin-1-ylmethyl-cyclopent-2-enone 
• 57493-12-6 3-methyl-3,5-bis-morpholin-4-ylmethyl-cyclopentane-1,2-dione 
• 50462-16-3 3,5-Dimethyl-1-cyclopenten-1,2-diol 
• 69898-48-2 2-methoxy-3,5-dimethyl-2-cyclopenten-1-one 

Relevant articles and documents

Ketone precursors for organoleptic compounds

The invention discloses ketones of formula I: wherein, Y is an optionally substituted alkyl, cycloalkyl, or cycloalkylalkyl, wherein each alkyl group is straight or branched and each alkyl and cycloalkyl group is saturated or unsaturated; R1is hydrogen or a C1-6alkyl group that is substituted, saturated or unsaturated, straight or branched; A is a chromophoric substituted aromatic ring or ring system; n is an integer; and with the proviso that formula I is not 2-ethoxy-1-phenyl-ethanone. These compositions are useful for the delivery of organoleptic compounds, especially of flavors, fragrances, masking agents and antimicrobial compounds.

Process for the preparation of alpha-hydroxycarbonyl compounds

The instant invention provides a new and improved method of preparing α-hydroxycarbonyl compounds, particulary substituted cyclopent-2-en-2-ol-1-ones and substituted 3-hydroxy-2(5H)-furanones. The novel sequence involves a number of novel intermediates including substituted 2-cyanocyclopentanones, substituted 2-cyano-2-hydroxycyclopentanones, and 2-cyano-2-hydroxyvalero-γ-lactones.