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
IFRA:

Signal word: Warning

Hazard statements:

• H315 Causes skin irritation.
• H319 Causes serious eye irritation.
• H335 May cause respiratory irritation.
• H412 Harmful to aquatic life with long lasting effects.

Precautionary statements:

• P261 Avoid breathing vapour or dust.
• P264 Wash hands and other contacted skin thoroughly after handling.
• P271 Use only outdoors or in a well-ventilated area.
• P273 Avoid release to the environment.
• P280 Wear protective gloves/eye protection/face protection.
• P302+P352 IF ON SKIN: Wash with plenty of soap and water.
• P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
• P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P312 Call a POISON CENTER or doctor/physician if you feel unwell.
• P332+P313 If skin irritation occurs: Get medical advice/attention.
• P337+P313 If eye irritation persists: Get medical advice/attention.
• P362 Take off contaminated clothing and wash before reuse.
• P403+P233 Store in a well-ventilated place. Keep container tightly closed.
• P405 Store locked up.
• P501 Dispose of contents/container to: approved disposal site.

Professional/Industrial use only.