2-Undecanone, also known as Methyl nonyl ketone and IBI-246, is a ketone with a colorless oil appearance. It can be produced synthetically or extracted from various plants like rue, bananas, cloves, etc. While it has a strong odor, it finds uses in perfumery (floral and pineapple notes), flavorings (fruits, cheese, butter, nut, and mushroom), and as an insect/animal repellent.
Perfume ingredient for floral and pineapple notes
IUPAC Name: undecan-2-oneCAS Number: 112-12-9
Molecular Formula: C11H22O
Molecular Weight: 170.29 g/mol
Boiling Point: 231.5 °C (448.70 °F)
Melting Point: 15.0 °C (59.00 °F)
Class: Ketone
Use/s: Scent, Flavoring, Insect repellent, Animal repellent
Synonyms
1: 2-Undecanone 2: Undecan-2-one 3: Methyl nonyl ketone 4: 2-Hendecanone 5: UNDECANONE 6: Methylnonylketone 7: Rue ketone 8: Ketone, methyl nonyl 9: Nonyl methyl ketone
Chemist Says
Colorless, oily liquid; [HSDB] Colorless liquid; mp = 11-13 deg C; [MSDSonline]
Scent: Citrus, Fatty, Rue-like
Scent profile
Scent profiles are inherently subjective and can significantly differ among individuals, and may also be influenced by the conditions at the time of evaluation. The information provided here is a synthesis of data from diverse sources, including books, cross-references, artificial intelligence analyses, and chemical research sites, aiming to present a comprehensive overview. We've distilled this information to highlight the most frequently observed scent profiles for each molecule or compound, offering a generalized perspective.
1: Floral, Fruity, Pineapple
2: Strong, Spicy, Herbaceous
3: Rose, Citrus, Orris-like
4: Strong odor
5: Floral, woody, with a slightly green and orris root character
Environmental Hazard