Cinnamyl Aldehyde
Aroma Chemical Base Note CAS 104-55-2
Hot, sweet cinnamon with a strong spicy, balsamic character and a soft dry, leafy facet. Intense and warming in spicy and oriental compositions.
Odor profile
| Note | Base Note |
| Descriptor 1 | Spicy |
| Descriptor 2 | Cinnamon |
| Descriptor 3 | Warm |
| Odor Impact1 | 130 |
| Tenacity1 | 75 h |
| Tenacity2 | 212 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Both tenacity figures are blotter life. The two labs use different evaluation protocols, so the numbers are not directly comparable — read them as two independent readings, not as a contradiction.
Identification
| CAS Number | 104-55-2 |
| INCI Name | 2-propenal, 3-phenyl- |
| Category | Aroma Chemical |
| Formula | C9H8O |
| Mol. Weight | 132.16 |
| IUPAC Name | (E)-3-phenylprop-2-enal |
| InChIKey | KJPRLNWUNMBNBZ-QPJJXVBHSA-N |
Synonyms
Cinnamaldehyde, Phenyl Acrolein, Beta, Cinnamic aldehyde, Cinnamal, Trans, 3-phenyl-2-propen-1-al, 3-Phenyl-2-propenal, 2-Propenal, 3-phenyl- 3-Phenylpropenal, gamma Phenylacrolcin, trans Cinnamaldehyde, Cassia aldehyde, alpha iso Propyl para iso Propyl cinnamic aldehyde, 3-(para iso Propylphenyl)-2-iso propyl-2-propen l al, Zimtaldehyde, 3-Phenylacrylaldehyde, 3-phenyl-, 3-Phenylpropenal, Phenylacrolein, (E)-3-phenylprop-2-enal, Cinnamylaldehyde, 3-Phenylacrolein, (E)-3-Phenyl-2-propenal, benzylidene acetaldehyde, cinnamaldehyde (ex cinnamon), cinnamaldehyde (natural), cinnamaldehyde natural, nat. cinnamic aldehyde, cinnamic aldehyde china, natural isolated constituent, cinnamic aldehyde FCC, cinnamic aldehyde nat FCC, cinnamic aldehyde natural, cinnamic aldehyde, natural, 3-phenyl acrolein, beta-phenyl acrolein, 3-phenyl acryl aldehyde, 3-phenyl acrylaldehyde, 3-phenyl propen-1-al, 3-phenyl propenal, 3-phenyl-2-propenaldehyde
Physical and chemical data
| Boiling Point | 253.0 °C |
| Melting Point | -7.5 °C |
| Flash Point | 71.1 °C |
| Density | 1.048 |
| Refractive Index | 1.618 |
| Vapor Pressure | 2.89X10-2 mm Hg at 25 °C |
| LogP | 1.9 |
| Solubility | Dissolves in about 700 parts water, in about 7 volumes of 60% alcohol. |
| Appearance | CBI; Other Solid; Liquid |
Regulatory status
IFRA maximum concentrations
| Category | Use | Limit in the finished product |
|---|---|---|
| Category 1 | Lip products, toys | 0.045 % |
| Category 2 | Deodorants, antiperspirants | 0.014 % |
| Category 3 | Eye products | 0.021 % |
| Category 4 | Fine fragrance | 0.25 % |
| Category 5A | Body lotion | 0.064 % |
| Category 5B | Face cream | 0.042 % |
| Category 5C | Hand cream | 0.064 % |
| Category 5D | Baby creams, oils | 0.014 % |
| Category 6 | Oral care, mouthwash | 0.15 % |
| Category 7A | Rinse-off hair products | 0.17 % |
| Category 7B | Leave-on hair products | 0.17 % |
| Category 8 | Intimate and baby wipes | 0.014 % |
| Category 9 | Soap, shampoo, rinse-off | 0.49 % |
| Category 10A | Household care, hand contact | 0.49 % |
| Category 10B | Aerosol air fresheners | 1.8 % |
| Category 11A | Intended skin contact | 0.014 % |
| Category 11B | Minimal skin contact | 0.014 % |
| Category 12 | No skin contact, candles | Not restricted |
| IFRA Amendment | 49 |
| Restriction Type | Restriction |
| Critical Effect | Dermal Sensitization And Systemic Toxicity |
Restricted components
| Component | Share |
|---|---|
| Cinnamic alcohol | 0.03 % |
| Benzyl Alcohol (ba) | 0.03 % |
| Benzaldehyde | 0.02 % |
IFRA regulated substances contained in this material. The interactive index derives the effective maximum concentration per category from them.
EU allergen declaration
| Substance | Share |
|---|---|
| Cinnamyl alcohol | 0.03 % |
| Benzyl alcohol | 0.03 % |
| Benzaldehyde | 0.02 % |
Substances that must be named in the ingredient list under Annex III of Regulation (EC) 1223/2009, as amended by Regulation (EU) 2023/1545. Where a range was given, the upper bound is shown.
All figures on this page are guide values collected from public reference works and supplier declarations. They differ between batches, origins and qualities. The data sheet of your own supplier is always the authoritative document for the material you actually use.