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General Presentation
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CAS N° :
110-43-0 -
EINECS number :
203-767-1 -
FEMA number :
2544 -
FLAVIS number :
07.002
-
JECFA number :
283 -
Volatility :
Head -
Price Range :
€€
Physico chemical properties
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Appearance :
Colorless liquid -
Density :
0,82 -
Refractive Index @20°C :
1,408 - 1,415 -
Optical rotation :
Data not available. -
Vapor pressure :
2,85 hPa @20°C 6,3 hPa @25°C -
Flash Point :
46°C
-
Molecular formula :
C7H14O -
Molecular Weight :
114,18 g/mol -
Log P :
1,98 -
Fusion Point :
-35°C -
Boiling Point :
150°C -
Detection Threshold :
1 ppb et 1,33 ppm
Chemistry & Uses
Uses in perfumery :
Methyl Amyl Ketone is used in fruity notes, lavender notes (in trace amounts to give power from the top) and spicy notes.
Year of discovery :
Data not available.
Natural availability :
Methyl Amyl Ketone is present in many plants and cheeses. The plant that contains the most is a green alga called Ulva Rigida. However, it is the synthetic Methyl Amyl Ketone which is most often used in perfumery.
Isomerism :
When the ketone function of Methyl Amyl Ketone is relocated, the smell can radically change. For example, Ethyl Butyl Ketone has a greener, oily and fruity smell. Aldehyde C-7 is a constitutional isomer of Methyl Amyl Ketone, but has a totally different smell from the latter.
Synthesis precursor :
A hydrogenation of Methyl Amyl Ketone converts it to 2-heptanol, which also has an olfactory interest.
Synthesis route :
Methyl Amyl Ketone is synthesized by a catalytic oxidation of 2-heptenol. This oxidation can be done in the presence of sodium hypochlorite at a high temperature, for example.
Stability :
Stable in perfumes and diverse functional bases
Other comments :
Comparing it with Methyl Hexyl Ketone, the latter has a more earthy than mushroom smell, as does Methyl Amyl Ketone.
Regulations & IFRA
Allergens :
This ingredient does not contain any allergen.
IFRA 51th :
This ingredient is not restricted for the 51th amendment
