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3,3-Dimethylacrylic acid

Basic information Safety Related Supplier
3,3-Dimethylacrylic acid Basic information
3,3-Dimethylacrylic acid Chemical Properties
Safety Information
  • Hazard Codes Xi,C
  • Risk Statements 37/38-41-34
  • Safety Statements 26-36/37/39-45-27
  • RIDADR 3261
  • WGK Germany 1
  • RTECS GQ5425000
  • 21
  • TSCA Yes
  • HazardClass 8
  • PackingGroup III
  • HS Code 29161900
MSDS
3,3-Dimethylacrylic acid Usage And Synthesis
  • DescriptionMay be prepared by the action of alkalis or bases on the ester of α-bromoisovaleric acid; by condensation of acetone with malonic acid or bromoacetic ester; by oxidation of mesityl oxide with sodium hypochlorite.
  • Chemical Properties3-Methylcrotonic acid has green, phenolic, dairy aroma
  • Chemical PropertiesWhite to brown crystal
  • OccurrenceReported found in the rhizomes of Senecio kaempferi Seib.; the corresponding ester occurs naturally in waste wort. Also reported found in raspberries, wheat bread, cocoa, coffee, black tea, Arctic bramble, and green and roasted maté.
  • DefinitionChEBI: A methyl-branched fatty acid that is but-2-enoic acid bearing a methyl substituent at position 3.
  • PreparationBy the action of alkalis or bases on the ester of α-bromoisovaleric acid; by condensation of acetone with malonic acid or bromoacetic ester; by oxidation of mesityl oxide with sodium hypochlorite.
  • Purification MethodsCrystallise the acid from hot water or pet ether (b 60-80o). [Beilstein 2 IV 1555.]
3,3-Dimethylacrylic acid Preparation Products And Raw materials
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