Aldehid C-12 MNA
Aldehyde C-12 MNA is 2-methylundecanal, an organic compound used as a fragrance component in soaps, detergents and perfumes. It smells herbaceous, orange and ambergris-like.
- Type
- Sirovina
- Olfactive family
- Ambrasti i mošusni
- Source
- synthetic molecule
- Chemical class
- aldehyde
Miris
Detaljno
Zanimljivosti
2-Methylundecanal contains one asymmetric carbon atom, and a professional perfumer found only a slight difference in odor quality and intensity between its enantiomers.
Dobijanje i hemija
Način dobijanja
Industry makes 2-methylundecanal by two main routes. In the first, methyl nonyl ketone reacts with an alkyl chloroacetate to give a glycidate, which then undergoes saponification followed by decarboxylation. In the second, undecanal reacts with formaldehyde in the presence of base to give 2-methyleneundecanal, which is then hydrogenated to 2-methylundecanal. The 2-methylundecanal is separated from the by-products by fractional distillation. The undecanal required is generated from 1-decene by hydroformylation.
- Formula
- C₁₂H₂₄O
- CAS
- 110-41-8
- Izgled
- Colorless or pale yellow liquid
- Jačina mirisa
- Visok
- Trajnost
- 388 hours at 100.00 %
- Sinonimi
- 2-Methylundecanal, Methylnonylacetaldehyde, MNA, Aldehyde C-12, Aldehyde M.N.A.
No IFRA Standard for the material itself (51st Amendment)
- Tačka ključanja
- 171.00 °C. @ 760.00 mm Hg
- Tačka paljenja
- 200.00 °F. TCC ( 93.33 °C. )
- Relativna gustina
- 0.82200 to 0.83000 @ 25.00 °C.
- Indeks prelamanja
- 1.43000 to 1.43600 @ 20.00 °C.
U parfemima
It is a fragrance element in soaps and detergents and in perfume, where it gives conifer notes, fir in particular. It is also used in fantasy compositions. It serves as an amber note in topnote complexes. It blends particularly well with floral, woody, amber and tobacco accords. It has good fabric substantivity.
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