Methyl Undecylenate
Methyl ricinoleate is pyrolyzed at high temperature, yielding heptaldehyde, methyl undecylenate and a small amount of fatty acids. Pure heptaldehyde and methyl undecylenate are isolated by fractional distillation.
CH3-(CH2)5-CH (HO)-CH2-CH=CH-(CH2)7-COOCH3 (Methyl Ricinoleate) à Heat à n-Heptaldehyde (CH3 (CH2)5CHO) + Methyl Undecylenate (CH2=CH (CH2)8COOCH3)
Applications
This ester of undecylenic acid finds application in cosmetics,pharmaceuticals,and anti-odour formulations.
Chemical, Physical Properties & Specifications
|
CAS Number |
5760-50-9 |
|
Formula |
C12H22O2 |
|
Molar Refractivity |
59.47 ± 0.3 cm3 |
|
Parachor |
521.5 ± 4.0 cm3 |
|
Index of Refraction |
1.444 ± 0.02 |
|
Surface Tension |
29.5 ± 3.0 dyne/cm |
|
Density |
0.886 ± 0.06 g/cm3 |
|
Polarizability |
23.57 ± 0.5 10-24cm3 |
|
Molecular Weight |
198.3018800 |
|
Odor Type |
Earthy |
|
Odor Strength |
Medium |
|
Odor Description at 100.00% |
Earthy Fungal Rose Fatty Floral |
|
Substantivity |
24 Hour(s) |
|
Appearance |
Colorless to pale yellow clear liquid |
|
Assay |
98.00 – 100.00 % |
|
Specific Gravity |
0.87900 – 0.88900 @ 25.00 °C |
|
Optical Rotation |
-2.00 to +2.00 |
|
Melting Point |
-28.00 - -27.00 °C. @ 760.00 mm Hg |
|
Boiling Point |
247.00 – 248.00 °C. @ 760.00 mm Hg |
|
Boiling Point |
159.00 – 160.00 °C. @ 50.00 mm Hg |
|
Acid Value |
1.00 max. KOH/g |
|
Shelf Life |
24.00 month(s) or longer if stored properly |
|
Flash Point ( oF. ) |
> 200.00 °F. TCC (> 93.33 °C.) |
