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ALPHA-ISO-METHYLIONONE

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ALPHA-ISO-METHYLIONONE Basic information
ALPHA-ISO-METHYLIONONE Chemical Properties
Safety Information
  • Hazard Codes Xi
  • Risk Statements 43
  • Safety Statements 24/25-36/37
  • RIDADR UN1230 - class 3 - PG 2 - Methanol, solution
  • WGK Germany 2
MSDS
ALPHA-ISO-METHYLIONONE Usage And Synthesis
  • Descriptionα-Isomethylionone has a fine violet and orris-like odor. This substance may be synthesized by condensation of citral with methyl ethyl ketone controlling the ratio between the n- and iso-forms; the methyl pseudo-ionone obtained is then subjected to ring closure, using strong alkali and high temperature (thus favoring the formation of the normal α- and β-methylionones) or with quaternary ammonium base (thus favoring the formation of wo-forms); See also monographs of α- and β-ionone and methyl α-, β-, and γ-ionones.
  • Chemical Propertiesα-Isomethylionone has a fine violet and orris-like odor.
  • PreparationBy condensation of citral with methyl ethyl ketone controlling the ratio between the n- and iso-forms; the methyl pseudoionone obtained is then subjected to ring closure, using strong alkali and high temperature (thus favoring the formation of iso-forms); See also monographs of α-, β-, and γ-ionones.
  • Contact allergensAs a fragrance allergen, a-isomethylionone has to be mentioned by name in cosmetics within the EU.
ALPHA-ISO-METHYLIONONE Preparation Products And Raw materials
ALPHA-ISO-METHYLIONONE(127-51-5)Related Product Information
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