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HomeProduct name list6-METHYL-3,5-HEPTADIEN-2-ONE

6-METHYL-3,5-HEPTADIEN-2-ONE

  • CAS NO.:1604-28-0
  • Empirical Formula: C8H12O
  • Molecular Weight: 124.18
  • MDL number: MFCD00043647
  • EINECS: 216-507-7
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-07-18 18:48:51
6-METHYL-3,5-HEPTADIEN-2-ONE Structural

What is 6-METHYL-3,5-HEPTADIEN-2-ONE?

Description

6-Methyl-3,5-heptadien-2-one has a cinnamon-like odor with a coconut undertone. May be prepared by reacting 2-methylbuten- 2-al with acetone in the presence of sodium ethylate or sodium hydroxide; by pyrolysis of tertiary actylenic carbinyl acetoacetates in the presence of an acid catalyst.

Chemical properties

Clear colorless to light yellow liquid

Chemical properties

6-Methyl-3,5-heptadine-2-one has a cinnamon-like odor with a coconut undertone

Occurrence

Reported as occurring in the oil of lavandin, grapes, tomato and tomato paste, green tea, filberts, cooked rice and rice bran, licorice, corn oil and lemon balm

The Uses of 6-METHYL-3,5-HEPTADIEN-2-ONE

6-Methyl-3,5-heptadien-2-one is used in the preparation of (RS)-(E)-2,6-dimethyl-1,2-epoxy-3,5-heptadiene.

Preparation

By reacting 2-methylbuten-2-al with acetone in the presence of sodium ethylate or sodium hydroxide; by pyrolysis of tertiary acetylenic carbinyl acetoacetates in the presence of an acid catalyst.

Aroma threshold values

Detection: 375 ppb

Taste threshold values

Taste characteristics at 30 ppm: green and sweet with a brown, herbal aftertaste.

Properties of 6-METHYL-3,5-HEPTADIEN-2-ONE

Boiling point: 95-96°C 20mm
Density  0,89 g/cm3
refractive index  1.5340
FEMA  3363 | 6-METHYL-3,5-HEPTADIEN-2-ONE
Flash point: 95-96°C/20mm
Odor at 1.00 % in dipropylene glycol. cinnamon coconut spice woody sweet weedy
Water Solubility  Miscible with alcohol. Immiscible with water.
JECFA Number 1134
BRN  1699937
EPA Substance Registry System 3,5-Heptadien-2-one, 6-methyl- (1604-28-0)

Safety information for 6-METHYL-3,5-HEPTADIEN-2-ONE

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H227:Flammable liquids
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for 6-METHYL-3,5-HEPTADIEN-2-ONE

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