An intensely fresh and powerful floralcy, marked by significant watery and green undertones, evokes the classic scent of muguet. This core lily-of-the-valley character is clean and diffusive, capturing a dewy, vibrant petal-like quality that brings life to a composition. Subtle complexities emerge through a soft, powdery background and a faint, almost hidden cumin-like nuance that adds a unique warmth and depth. The overall effect of the ingredient, known commercially as Lilial®, is one of impressive radiance, imparting a realistic and humid floral signature to any blend.
For decades, its versatility made it a workhorse for building a wide array of floral accords. It was particularly recommended for conferring tenacity and realism to muguet, linden-blossom, and cyclamen compositions, where its presence could create a blooming, voluminous effect. In these applications, this aldehyde, chemically known as p-tert-Butyl-alpha-methylhydrocinnamic aldehyde, blended seamlessly with materials like hydroxycitronellal and cyclamen aldehyde to create complete bouquets. Due to significant regulatory reclassifications, its use in modern perfumery is now heavily restricted or prohibited in many regions, making it a legacy material in the floral palette.
Category | Aromatic Compound |
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IUPAC Name | 3-(4-tert-butylphenyl)butanal |
CAS Number | 80-54-6 |
Molecular Weight | 204.31 g/mol |
Canonical SMILES | CC(CC=O)C1=CC=C(C=C1)C(C)(C)C |
Odor Family | Floral |
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Odor Strength | 1 2 3 4 5 |
Odor Description | Cumin, Floral, Green, Muguet, Powdery, Watery |
Usage Level | 1% in the fragrance concentrate |
Substantivity | 236 hours at 100% |
Appearance | Colorless to pale yellow clear oily liquid (est) |
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Specific Gravity | 0.942 to 0.947 @ 25 °C. |
Pounds per Gallon | 7.838 to 7.88 |
Refractive Index | 1.503 to 1.506 @ 20 °C. |
Vapor Pressure | 0.005 mmHg @ 25 °C. (est) |
Boiling Point | 250 to 251 °C. @ 750 mm Hg |
Flash Point | 210 °F. TCC ( 98.89 °C. ) |
XLogP | 3.6 |
Acid Value | 2 max. KOH/g |
Shelf Life | 24 months if stored properly |
Storage | Store in cool, dry place in tightly sealed containers, protected from heat and light. |
Standard | https://ifrafragrance.org/standards/IFRA_STD_015.pdf | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Category | Fragrance agents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Critical Effect | Dermal sensitization and systemic toxicity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Restrictions Usage limits in the finished product |
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Pictograms | |
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Hazard Statement | H302 - Harmful if swallowed H315 - Causes skin irritation H317 - May cause an allergic skin reaction H361 - Suspected of damaging fertility or the unborn child H401 - Toxic to aquatic life H411 - Toxic to aquatic life with long-lasting effects |
Precautionary Statement | P201 - Obtain special instructions before use P202 - Do not handle until all safety precautions have been read and understood P261 - Avoid breathing dust/fumes/gas/mist/vapours/spray P264 - Wash … thoroughly after handling P270 - Do not eat, drink or smoke when using this product P272 - Contaminated work clothing should not be allowed out of the workplace P273 - Avoid release to the environment P280 - Wear protective gloves/protective clothing/eye protection/face protection P301 + P312 - IF SWALLOWED: Call a POISON CENTER/doctor/…/if you feel unwell P302 + P352 - IF ON SKIN: Wash with plenty of water/… P308 + P313 - If exposed: Call a POISON CENTER or doctor/physician P330 - Rinse mouth P333 + P313 - If skin irritation or a rash occurs: Get medical advice/attention P362 - Take off contaminated clothing P391 - Collect spillage P405 - Store locked up P501 - Dispose of contents/container in accordance with local/regional/national/international regulations. |
R-phrases | R22 - Harmful if swallowed R36/38 - Irritating to eyes and skin R43 - May cause sensitisation by skin contact |
S-phrases | S02 - Keep out of the reach of children S24/25 - Avoid contact with skin and eyes S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice S37 - Wear suitable gloves |
Europe Standard Hazard | Xn - Harmful |