Classic aldehydic sparkle
- 50Aldehyde C-12 MNA
- 30Aldehyde C-10
- 20Aldehyde C-9
The clean, waxy-bright 'fresh linen' halo of classic aldehydic florals. (All three as 10% dilutions.)
Use the dilution blend at 1–3% of the formula.
CAS-verifiedIFRA data checkedCOA / SDS on requestSample to bulkPerfumery Raw Materials
Aldehyde C-9 (Nonanal)
Unravel Perfumery ·Aroma Chemicals
Rs. 780.00
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Scent FamilyAldehydicWaxyCitrusRose
CAS 124-19-6 · Aldehydic · Citrus · Not restricted by IFRA
Aldehyde C-9, or nonanal, is a waxy fatty aldehyde with a rosy, orange-peel character. It occurs naturally in rose and citrus oils. On its own it smells a bit like a snuffed candle; in a formula it adds that clean, sparkling lift people describe as aldehydic.
What it smells like
Waxy and fatty at first, then rosy and citrusy, with a peel-like freshness. It is strong, so smell it diluted.
How perfumers use it
Use it in traces from a 1% or 10% dilution. C-9 brightens rose, neroli and citrus accords and fills the gap between the more citrus C-10 and the more floral-soapy C-11 and C-12 aldehydes. Blends of several aldehydes usually smell more natural than one.
Blends well with: Aldehyde C-10, Aldehyde C-12 MNA, Phenyl Ethyl Alcohol, Hedione, Citrus oils.
IFRA & regulatory
Not restricted under the current IFRA Standards (51st Amendment).
For use in perfumery, cosmetics and fragrance manufacturing only. Not for ingestion. Handle neat material with gloves and good ventilation. The certificate of analysis (COA) and safety data sheet (SDS) are available on request.
Frequently asked questions
What is aldehyde C-9?
It is nonanal (CAS 124-19-6), a nine-carbon aliphatic aldehyde with a waxy, rosy, orange-peel odour.
How should I dilute aldehydes?
Most perfumers keep aldehydes as 1% or 10% solutions in ethanol or DPG. They are powerful, and diluting also makes small additions easier to weigh.
Is aldehyde C-9 IFRA restricted?
Not restricted under the current IFRA Standards (51st Amendment).
Browse more aroma chemicals for perfumery. Technical and regulatory data checked 21 September 2026 against the IFRA Standards (51st Amendment) and the 52nd Amendment consultation outcome.
Pair & layer
Works beautifully with
Starting points built from our own catalogue. Dosages are % of the finished oil or parts by weight; adjust by smell.
Boost
Orange, Rose & Patchouli Perfume Oil
Add 0.05–0.1% (use a 10% dilution) Aldehyde C-9 to this oil
Expect a clean, sparkling waxy-citrus top.
Boost
Rose, Saffron & Patchouli Perfume Oil
Add 0.05–0.1% (use a 10% dilution) Aldehyde C-9 to this oil
Expect a clean, sparkling waxy-citrus top.
Boost
Peony, Rose & Apricot Perfume Oil
Add 0.05–0.1% (use a 10% dilution) Aldehyde C-9 to this oil
Expect a clean, sparkling waxy-citrus top.
Suggested levels are kept within IFRA fine-fragrance limits for the added material. Your oil already contains other materials, so check the finished blend against the IFRA Standards before selling.
Official documents and compliance certificates for this product. Always verify IFRA usage levels from the official compliance sheets before formulation.
IFRA Compliance SheetPDF
Safety Data Sheet (SDS)PDF
Documents will appear here once uploaded via the custom.certifications metafield.Request via WhatsApp →
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Opened fragrance products cannot be returned. Damaged or incorrect items resolved within 48 hours of reporting with photo.
Aldehyde C-9 (Nonanal), at a glance
Technical & regulatory data checked 21 Sep 2026
Molecule
C9H18O
- Chemical name
- Nonanal
- CAS number
- 124-19-6
- Molecular weight
- 142.24 g/mol
- Appearance
- Colourless liquid
- Solubility
- soluble in ethanol, DPG, PG, fixed oils; insoluble in glycerin; very low water solubility
- Flash point
- 63 °C
Also known asNonanalAldehyde C-9
Performance
Note positionTop
Top
Heart
Base
Odour strengthHigh
Tenacity on strip~276 h
Fleeting2 weeks+
Typical useUp to 1% of the concentrate
Odour profile
Aldehydic · Citrus
Waxyrosyorange peelslightly fatty-green
Blends well with
Regulatory
Not restricted by IFRA
Limits for other product types differ. Always check the current IFRA Standards and your local cosmetic regulations before finalising a formula.
Handling & dilution
Keep as a 10% (or 1%) dilution in ethanol, DPG or TEC; aldehydes oxidise, so store cool, dark and tightly closed.
Keep exploring
More aroma chemicals
Formulating with this material?
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