Aldehyde C-11 Undecylic
Aroma Chemical Top Note CAS 112-44-7
Strong, fatty aldehydic with a rosy, waxy character and a soft ozone, citrus and cucumber facet. Used in traces, it builds the classic aldehydic floral effect of soapy white florals.
Odor profile
| Note | Top Note |
| Descriptor 1 | Aldehydic |
| Descriptor 2 | Citrus |
| Descriptor 3 | Fresh |
| Odor Impact1 | 600 |
| Tenacity1 | 20 h |
| Tenacity2 | 72 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Both tenacity figures are blotter life. The two labs use different evaluation protocols, so the numbers are not directly comparable — read them as two independent readings, not as a contradiction.
Identification
| CAS Number | 112-44-7 |
| INCI Name | Undecanal |
| Category | Aroma Chemical |
| Formula | C11H22O |
| Mol. Weight | 170.29 |
| IUPAC Name | undecanal |
| InChIKey | KMPQYAYAQWNLME-UHFFFAOYSA-N |
Synonyms
Undecanal, Aldehyde C-11, Aldehyde C-110, Undecyl aldehyde, aldehyde C 11 undecylic, aldehyde C 11 undecylic food grade, aldehyde C-11 FCC, aldehyde C-11 undecyl, aldehyde C-11 undecylic FCC, aldehyde C-11 undecylic natural, aldehyde C11 undecylic, hendecanal, hendecanaldehyde, 1-undecanal, N-undecanal, undecanal (aldehyde C-11 undecylic), undecanaldehyde, alpha-undecanone, N-undecyl aldehyde, undecylaldehyde, undecylic aldehyde
Physical and chemical data
| Boiling Point | 223 °C |
| Melting Point | -4.0 °C |
| Flash Point | 96.11 °C |
| Density | 0.825 |
| Refractive Index | 1.43 |
| Vapor Pressure | 0.06 [mmHg] |
| LogP | 4.3 |
| Solubility | soluble in most fixed oils, propylene glycol; insoluble in glycerol, water |
| Appearance | Liquid; CBI |
All figures on this page are guide values collected from public reference works and supplier declarations. They differ between batches, origins and qualities. The data sheet of your own supplier is always the authoritative document for the material you actually use.