Альдегід 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
- Складник
- Olfactive family
- Амброві й мускусні
- Source
- synthetic molecule
- Chemical class
- aldehyde
Запах
Докладно
Цікавий факт
2-Methylundecanal contains one asymmetric carbon atom, and a professional perfumer found only a slight difference in odor quality and intensity between its enantiomers.
Отримання й хімія
Спосіб отримання
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.
- Формула
- C₁₂H₂₄O
- CAS
- 110-41-8
- Зовнішній вигляд
- Colorless or pale yellow liquid
- Сила запаху
- Висока
- Стійкість
- 388 hours at 100.00 %
- Синоніми
- 2-Methylundecanal, Methylnonylacetaldehyde, MNA, Aldehyde C-12, Aldehyde M.N.A.
No IFRA Standard for the material itself (51st Amendment)
- Температура кипіння
- 171.00 °C. @ 760.00 mm Hg
- Температура спалаху
- 200.00 °F. TCC ( 93.33 °C. )
- Відносна густина
- 0.82200 to 0.83000 @ 25.00 °C.
- Показник заломлення
- 1.43000 to 1.43600 @ 20.00 °C.
У парфумерії
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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