Aldehyde C14 Peach (Gamma-Undecalactone) 1

Aldehyde C14 Peach is one of the oldest Peach notes in history, but is actually a Lactone, despite being labelled as an Aldehyde.

Widely used, although in trace amounts in perfume compositions.

In order of frequency in use, it ranks very high among the materials on the perfumer’s shelf.

Following the success of a popular fragrance in the 1950s, the title material had a further increase in popularity, when numerous perfumers used it at unusually high levels along with new non Nitro musk chemicals, in order to duplicate part of the new note in the successful perfume. The author has yet to see a duplication which sells better than the original (in perfumes), but it must be admitted that Undecalactone drew benefit from this popularity.

lt blends excellently with Aldehyde C18 in Gardenia and Tuberose, and in many versions of Lilac bases. It extends the depth of an Orange Blossom often too harsh with conventional materials, and it is a frequent component of Honeysuckle, etc. Concentrations far below 1% are effective, and it is at times possible to ruin a fragrance with 0.1 or 0.2% of Aldehyde C14, just as well as it is possible to double the floral sweetness and depth of another fragrance with that amount of Undecalactone.  

Aldehyde C14 was originally used in Violet perfumes, so popular at the time of discovery of this Lactone (about 1900). But its most important use today is in flavours, primarily in imitation Peach, but also in many fruity types, often as a fixative for the very volatile fruit esters.

Product specification.

CAS No: 104-67-6
Odour description (decreasing): Fruity Peach, Creamy, Fatty, Lactonic, Powerful.
Solvent: DPG to give a 1% Solution of Aldehyde C14
Synonyms: Gamma-Undecalactone