Softer and rounder than C-8, with less of the sharp fatty edge and more warmth. The opening is sweet and waxy, orange peel-bright, with a fatty citrus quality that reads as simultaneously fresh and richly textural. It is more forgiving than its lighter siblings in the aldehyde series, with a longer odour life of 10 hours on a smelling strip and a relative odour impact of 500, still extremely powerful but more workable at the bench. At low concentrations it adds a luminous, abstract quality that lifts florals off the skin and gives a composition that indefinable “radiance” quality associated with classic French perfumery.

Aldehyde C-10 works as a top-to-heart note modifier, citrus-floral brightener, and classic aldehydic lift material.

Recommended concentration: 0.02% minimum, 0.2% average, up to 3.6% maximum in a finished compound. Pre-dilute before use.

Particularly effective in:

Classic aldehydic floral fine fragrance structures
Eau de cologne and neroli-forward citrus compositions
Iris, freesia, peony, and ionone-complex floral accords
Gardenia and white floral heart accords needing waxy lift
Bergamot, grapefruit, and lime-forward top note structures
Soap fragrance and fabric care where a clean, bright aldehydic character is desired (rated excellent)

Blends well with:

Resins: olibanum (frankincense) for a classic accord
Citrus and herbal materials: petitgrain
Florals: phenethyl alcohol, jasmine, rose, neroli
Fixative esters: methyl cinnamate helps anchor and extend the aldehyde
Other aldehydes: C-8, C-9, C-11, C-12 for layered aldehydic effects
Often used with: coumarin, Hedione, Iso E Super

Material Type: Aroma chemical
Function: Aldehydic top note modifier / citrus-floral brightener
Extraction Method: Synthetic
CAS Number: 112-31-2
FEMA Number: 2362
Synonyms: Decanal, Capric Aldehyde, Decyl Aldehyde, n-Decyl Aldehyde, Capraldehyde
Origin: Synthetic
Odour Profile: Sweet, waxy, orange peel, citrus, fatty, softly floral
Appearance: Colourless liquid
Specific Gravity: 0.823
Refractive Index: 1.427
Flash Point: 83°C
Boiling Point: 124°C
Solubility: Soluble in alcohol and oils
Key Components: Decanal (n-decanal)
Regulatory Status: SDS and/or IFRA documentation can be supplied upon request where available.

For external use only. Do not ingest
High odour impact (500); handle with care and work in a well-ventilated area
Pre-dilute to 10% in DPG or alcohol before use for accurate weighing and blending
Flammable liquid; flash point 83°C; keep away from heat, sparks, and open flames
Avoid contact with eyes and skin at full concentration
Store tightly sealed in a cool, dark place; oxidises on exposure to air
Shelf life: 1-2 years; discard if the aroma has turned harsh or rancid