Aldehyde C12 Lauric

✦ Synthetic fatty aldehyde delivering a clean, soapy, and lightly waxy floral character essential to classic perfumery
✦ Core building block of iconic aldehydic fragrances — the same chemical class behind timeless compositions like Chanel No.5
✦ Excellent top-to-mid note performance with strong lift and brightness in alcoholic and oil-based formulas
✦ Highly effective in soap, detergent, and functional fragrance applications due to its natural affinity with surfactant systems
✦ Used at very low concentrations — typically 0.1% to 1% — making a single bottle go an exceptionally long way
✦ Vegan and cruelty-free synthetic ingredient — no animal-derived components
✦ Supplied in cosmetic-grade purity suitable for perfumery, soap making, lotion formulation, and home fragrance

Aldehyde C12 Lauric, known chemically as Dodecanal or Lauryl Aldehyde, is a straight-chain fatty aldehyde belonging to the aliphatic aldehyde family. Its use in perfumery dates back to the early twentieth century when pioneering perfumers, most notably Ernest Beaux in his creation of Chanel No.5 in 1921, used aldehydes of this type to produce a new kind of abstract, radiant, and distinctly modern fragrance aesthetic. The C12 designation refers to its twelve-carbon chain, which gives it a distinctly soapy and clean-waxy character that sits apart from the heavier, more floral C12 MNA or the sharper, metallic quality of C11 Undecylenic.

What makes Aldehyde C12 Lauric uniquely valuable is its dual personality. At very low doses it functions as a clean, laundered, almost neutral lift agent that opens a composition with sparkle and airiness. At slightly higher concentrations it asserts a waxy, fatty, and distinctly soapy presence that grounds floral and musky accords with a tactile, textural quality. This versatility allows perfumers to use it both as an accent and as a featured accord depending on the formula. Its behaviour in soap and surfactant bases is particularly reliable, where many aldehydes fade rapidly but C12 Lauric holds with commendable tenacity.

Rabibazaar supplies cosmetic-grade Aldehyde C12 Lauric suitable for independent perfumers, soap formulators, cosmetic product developers, and home fragrance makers seeking a dependable, professionally sourced aldehydic material.

SCENT DESCRIPTION : Aldehyde C12 Lauric opens with a clean, sparkling soapiness — bright and airy with an almost ironed-linen freshness. As it develops it reveals a soft waxy warmth, faintly reminiscent of white florals and freshly milled soap. There is a subtle fatty roundness underneath that gives the note body without heaviness. The overall impression is luminous, hygienic, and classically elegant.

NOTE POSITION : Top — Mid

FRAGRANCE FAMILY : Aldehydic · Soapy · Floral-Waxy

FACETS : Soapy · Clean · Waxy · Floral · Luminous

TENACITY : Medium — 4 to 6 hours on skin, longer in soap and wax bases

SILLAGE : Medium — projects cleanly in the opening, softens to a close intimate drydown

Chemical Name : Dodecanal (n-Dodecanal)
CAS Number : 112-54-9
Synonyms : Lauryl Aldehyde, Lauric Aldehyde, C12 Aldehyde, Aldehyde C-12 Lauric, n-Dodecyl Aldehyde, Dodecyl Aldehyde
Purity % : 95% minimum (cosmetic grade)
Appearance : Colorless to pale yellow clear liquid
Odor Threshold : Approximately 0.001 ppm (highly odour-active)
Solubility : Insoluble in water — soluble in ethanol, IPM, dipropylene glycol, and fixed oils
Specific Gravity : 0.826 — 0.832 at 20°C
Flash Point : Approximately 74°C (165°F)
Type : Synthetic

Fine Fragrance : ★★★★★
Aldehyde C12 Lauric is a classic fine fragrance material with deep historical roots in aldehydic floral compositions. It adds a sophisticated sparkle and clean lift to EDPs and EDTs, particularly in white floral, chypre, and powdery oriental accords. Use at 0.1% to 0.5% for accent, or up to 1% when aldehyde is a featured part of the concept.

Attar and Oriental Blending : ★★★★
In attar and oriental formulas, C12 Lauric contributes a refined cleanliness that offsets heavy resins, musks, and ouds without diminishing their richness. It brings modernity to traditional compositions and improves the opening phase. Use carefully at low doses — 0.05% to 0.2% — to avoid overpowering the warmer base materials.

Functional Fragrance : ★★★★★
This aldehyde was practically designed for functional fragrance. Its soapy, laundered quality makes it an industry standard in detergent, fabric softener, shampoo, and body wash applications. It blends naturally into surfactant systems and enhances the perception of cleanliness. Usage rates of 0.2% to 0.5% are standard in this category.

Cosmetics and Personal Care : ★★★★
Aldehyde C12 Lauric performs well in leave-on cosmetics including creams, lotions, and body butters where its clean-waxy character adds a pleasant, understated scent profile. It is stable in most emulsion systems at recommended usage rates. Avoid use in high pH systems without stability testing.

Home Fragrance : ★★★★
In candles and reed diffusers, C12 Lauric delivers a clean, bright top note impression that evokes freshness and cleanliness. It pairs well with musks and light woods for home fragrance compositions that aim for a laundered or spa-like atmosphere. Performs reliably in both paraffin and soy wax systems.

Recommended Usage Rates by Application

EDP : 0.2% — 1.0%
EDT : 0.1% — 0.8%
Body Lotion : 0.1% — 0.5%
Shampoo / Body Wash : 0.05% — 0.3%
Candle : 0.3% — 1.0%
Reed Diffuser : 0.5% — 2.0%
Soap (bar) : 0.2% — 0.8%

IFRA 51st Amendment — Dodecanal (CAS 112-54-9)

Aldehyde C12 Lauric is not listed as a restricted material under the IFRA 51st Amendment and does not carry a specific usage cap in standard fragrance categories. It is considered safe at the above recommended usage rates when formulated responsibly.

⚠️ Note — Aldehydes are highly potent materials. Always measure by weight using a precision scale. Do not estimate by volume. Even small overuse can cause formula imbalance or skin irritation in sensitive individuals.

⚠️ Note — Conduct a full stability and skin safety assessment when incorporating into leave-on products for commercial production.

Method 1 — Accent Dosing for Fine Fragrance
Add C12 Lauric at 0.05% to 0.2% to an alcoholic base containing florals or musks. This dose introduces sparkle and lift without asserting a dominant soapy character. Ideal for modern clean fragrances, white florals, and skin-scent compositions.

Method 2 — Aldehydic Accord Construction
To build a classic aldehydic accord, combine C12 Lauric with Aldehyde C11 Undecylenic and Aldehyde C12 MNA in a ratio of approximately 40:30:30. Dilute the blend to 10% in DPG or IPM before adding to your formula. This pre-blend approach gives you better control and avoids the sharpness of raw aldehyde dosing directly into a formula.

Method 3 — Functional and Soap Fragrance
For soap or detergent applications, dissolve C12 Lauric into a carrier such as DPG first, then blend with musks, citrus top notes, and light floral materials. The aldehyde will reinforce the clean, laundered accord that consumers associate with quality soap and laundry products.

BEST PAIRINGS

Benzyl Acetate → Softens the soapy edge and adds a floral-jasmine sweetness
Iso E Super → Adds depth and woody diffusion, elevates the clean character
Galaxolide → Classic pairing — musk anchors the aldehyde beautifully
Hedione → Adds transparency and jasmine radiance to the composition
Rose Oxide → Introduces a dewy, luminous quality in floral constructions
Ambrette Seed → Adds natural, musky warmth that grounds the clean brightness
Linalool → Smooths the waxy edge and adds a soft lavender-floral nuance
Cedarwood Virginia → Woody anchor that pairs naturally with soapy aldehydic accords

AVOID
Avoid combining with materials at very low pH as aldehydes can undergo condensation reactions. Avoid direct blending with undiluted reactive aroma chemicals without pre-testing. High-pH soap systems above pH 10 may reduce the stability of this material over time — test and adjust as needed.

I reach for Aldehyde C12 Lauric whenever a formula needs what I think of as organised brightness — not the sharp metallic flash of C11, not the rosy warmth of C12 MNA, but something in between that simply smells clean. There is something almost architectural about it. A small addition of this aldehyde can reorganise a muddled floral formula by introducing space and luminosity, the same way light changes the feel of a room. It is equally at home in a mass-market detergent accord and in a considered niche fragrance construction, which speaks to its unusual range as a material.

ADVANCED TIP — When building an aldehydic floral for alcoholic perfume, do not add C12 Lauric directly to the main formula at full strength. Instead, prepare a 1% dilution in 96% perfumers alcohol and add this diluted solution to your blend drop by drop. This gives you far greater precision and prevents the common beginner mistake of over-aldehyding a formula. At the right level the aldehyde disappears as a distinct note and becomes a quality — a sense of radiance and cleanliness that elevates every other material around it.

Physical State : Liquid at room temperature
Skin Safety : Use at recommended rates only. May cause sensitisation at high concentrations. Perform patch test before commercial use.
Eye Contact : Avoid direct contact. Rinse thoroughly with water for 15 minutes if contact occurs. Seek medical advice if irritation persists.
Ingestion : Not for internal use. If ingested do not induce vomiting — seek immediate medical attention.
Ventilation : Use in a well-ventilated area. Avoid prolonged inhalation of vapour at concentrated levels.
Storage : Store in a cool, dark place between 10°C and 25°C. Keep away from heat sources and direct sunlight.
Shelf Life : 24 to 36 months when stored correctly in a sealed container
Container : Amber glass or HDPE plastic with a tight-fitting lid. Avoid reactive metals.
Flammability : Combustible liquid. Flash point approximately 74°C. Keep away from open flame.

Q: What does Aldehyde C12 Lauric smell like?
A: It smells clean, soapy, and slightly waxy with a soft floral undertone. Think freshly milled soap or freshly laundered linen with a subtle brightness.

Q: How much should I use in a perfume formula?
A: Start at 0.05% to 0.1% in your final formula. Aldehydes are extremely potent and a little goes a very long way — always dilute before adding to a blend.

Q: Can I use it in cold process soap?
A: Yes, it is suitable for bar soap at 0.2% to 0.8% of the fragrance load. Note that high-pH saponification environments can affect aldehyde stability over time — test your soap formula across a 4-week cure period before finalising.

Q: Is this the same aldehyde used in Chanel No.5?
A: Chanel No.5 famously uses a blend of aliphatic aldehydes including C10, C11, and C12 types. Aldehyde C12 Lauric is part of this chemical family and contributes the characteristic soapy brightness associated with that iconic fragrance style.

Q: How does Aldehyde C12 Lauric differ from Aldehyde C12 MNA?
A: C12 Lauric (Dodecanal) is soapy, clean, and waxy — it smells like fresh soap and laundered fabric. C12 MNA (2-Methylundecanal) is rosy, floral, and more diffusive with a softer, more feminine character. Both are C12 aldehydes but they have distinctly different olfactory profiles and applications. Many professional perfumers use both together in aldehydic floral constructions.

Professional formulation workflow

Aldehyde C12 Lauric should be evaluated in a controlled small batch before production. Confirm the supplied grade, active concentration and recommended application range from the current supplier documentation. Weigh accurately instead of measuring by drops, record every adjustment, and compare the modified trial against an unchanged control.

Compatibility and quality checks

Test the ingredient in the actual alcohol, oil, surfactant, emulsion or wax base intended for sale. Observe clarity, separation, color, odor and performance immediately after mixing and again after a suitable resting period. A material that looks stable in a concentrate can behave differently in the finished formulation.

Scale-up and safety

Convert percentages into exact batch weights and verify the final consumer-product concentration before scaling. Follow the latest applicable IFRA, cosmetic, chemical and supplier safety documentation for the intended category. Use appropriate protective equipment, ventilation and clearly labeled containers, and retain a sample from every approved batch for quality comparison.