2-甲基十一醛

2-甲基十一醛是种有机芳香化合物，天然存在于金桔皮油中。具有草本香、柑橘甜香和龙涎香等芳香特征。

可由methylnonone或α-nonylacrolein和ethyl monochloroacetate（CAS 105-39-5）在sodium ethanol下制备而得，或通过裂解相应的缩水甘油酸而得。

2-甲基十一醛（MNA）具有浓郁的柑橘芳香，并伴有龙涎香特征，因而可用于配制茉莉、龙涎香等香型的香精。MNA用作化妆品、香皂和食用香精的调味原料。

Perfume
- Stability: ■■■■
- Typical usage: microscale – 0.5%
- Effect and evaluation of incense retention: Head fragrance and body fragrance
Shampoo
- Stability: ■■■
- Typical usage: microscale – 0.5%
- Effect and evaluation of incense retention:
  - weting：■■■
  - drying：■■■■
Bath cream
Stability: ■■■
Typical usage: microscale – 0.5%
Effect and evaluation of incense retention:
- stir-fry perfume：■■■■
Soap
Stability: ■■■
Typical usage: 0.5% – 1%
Effect and evaluation of incense retention:
- bubble：■■■■
- drying：■■■■
Detergent
Stability: ■■
Typical usage: 0.5% – 1%
Effect and evaluation of incense retention:
- weting：■■■■
- drying：■■■
Softener
Stability: ■■■
Typical usage: microscale – 0.5%
Effect and evaluation of incense retention:
- weting：■■■■
- drying：■■■
Multi-purpose cleaner
- Stability: ■■
Candle
Stability: ■■■
Typical usage: microscale – 0.5%
Effect and evaluation of incense retention:
- cold wax：■■■■
- burning：■■■■