6682-69-5

Basic information

• Product Name: 5,7-DIMETHYL-1-INDANONE
• Synonyms: 5,7-DIMETHYL-1-INDANONE;5,7-Dimethyl-2,3-dihydro-1H-indene-1-one;2,3-Dihydro-5,7-dimethyl-1H-inden-1-one;5,7-DiMethyl-2,3-dihydro-1H-inden-1-one
• CAS NO: 6682-69-5
• Molecular Formula: C₁₁H₁₂O
• Molecular Weight: 160.21
• Product Categories: Indanone & Indene
• Mol File: 6682-69-5.mol
• Article Data: 6

Chemical Properties

• Melting Point: 76-79℃
• Boiling Point: 288℃
• Flash Point: 122℃
• Appearance: /
• Density: 1.085
• Storage Temp.: Sealed in dry,Room Temperature
• CAS DataBase Reference: 5,7-DIMETHYL-1-INDANONE(CAS DataBase Reference)
• NIST Chemistry Reference: 5,7-DIMETHYL-1-INDANONE(6682-69-5)
• EPA Substance Registry System: 5,7-DIMETHYL-1-INDANONE(6682-69-5)

Safety Data

• Hazardous Substances Data: 6682-69-5(Hazardous Substances Data)

Usage

General Description

5,7-DIMETHYL-1-INDANONE, also known as dimethylindanone, is a chemical compound with the molecular formula C11H14O. It is a colorless to pale yellow liquid with a sweet, woody odor and is commonly used as a fragrance and flavoring agent in the perfume and food industries. It is also used as an intermediate in the synthesis of pharmaceuticals and other chemicals. 5,7-DIMETHYL-1-INDANONE is known for its high solubility in alcohol and acetone and its low solubility in water. It is considered to be relatively stable under normal conditions and has low acute toxicity. However, it should be handled with caution as prolonged exposure to the compound may cause skin irritation and respiratory issues.

Upstream product

• 67-56-1 methanol 
• 50690-12-5 2-chloro-1-(2,4,6-trimethyl-phenyl)-ethanone 
• 65080-42-4 2,4,6-trimethylphenacyl benzoate 
• 1685-82-1 4,6-dimethylindane 

Downstream Products

• 22430-64-4 4,6-dimethyl-1H-indene 
• 6898-20-0 2,2,5,7-Tetramethylindan-1-on 
• 106116-41-0 2-(3,5-Dimethylbenzyliden)-2,3-dihydro-5,7-dimethyl-1H-inden-1-on 

Relevant articles and documents

Leaving group effect on photochemistry of ortho-alkylphenacyl carboxylate

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Unique solvent effect on photochemistry of ortho-alkylphenacyl benzoates

Photolysis of 2,4,6-trialkylphenacyl benzoates gives not only the corresponding indanones and benzoic acid, but also the corresponding benzocyclobutenols (CBs), which are also detected in the photolysis of mono-alkylphenacyl benzoates for the first time.

Photoenolization with α-Chloro Substituents

Irradiation of a methanol solution of 2,5-dimethyl-α-chloropropiophenone (1a) produces 2,6-dimethyl-1-indanone (2a), 2-(methoxymethyl)-5-methylpropiophenone (3a), 2,5-dimethylpropiophenone (4a), and methyl 2-(2,5-dimethylphenyl)propionate (5a).It is proposed that the first two products arise from hydrogen abstraction followed by chlorine loss, the latter two from initial loss of chlorine.Making the chlorine-bearing carbon primary suppresses the formation of the latter two products, while maintaining the carbonyl nearly planar with the ring suppresses all product formation.Other examples are presented.