Phenylacetaldehyde
Aroma Chemical Base Note CAS 122-78-1
Powerful, green hyacinth with a sweet, honeyed floral character and a soft rosy facet. Diffusive, it builds hyacinth, rose and green floral accords.
Odor profile
| Note | Base Note |
| Descriptor 1 | Floral |
| Descriptor 2 | Hyacinth |
| Descriptor 3 | Green |
| Tenacity2 | 400 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 122-78-1 |
| INCI Name | Phenylacetaldehyde |
| Category | Aroma Chemical |
| Formula | C8H8O |
| Mol. Weight | 120.15 |
| IUPAC Name | 2-phenylacetaldehyde |
| InChIKey | DTUQWGWMVIHBKE-UHFFFAOYSA-N |
Synonyms
Phenyl acetaldehyde, acetaldehyde, phenyl-, benzacetaldehyde, benzene acetaldehyde, benzeneacetaldehyde, benzyl carboxaldehyde, benzylcarboxaldehyde, hyacinthin, phenyl acetaldehyde natural, phenyl acetaldehyde pure FCC, phenyl acetic aldehyde, phenyl acetic aldehyde 100%, phenyl ethanal, 2-phenyl ethanal, 1-oxo-2-phenyl ethane, oxo phenyl ethane, phenylacetaldehyd, 2-phenylacetaldehyde, a-phenylacetaldehyde, phenylacetaldehyde natural, phenylacetic aldehyde, phenylethanal, 2-phenylethanal, 1-oxo-2-phenylethane, alpha-tolualdehyde, a-toluic aldehyde, alpha-toluic aldehyde, a-tolyaldehyde, phenyl-acetaldehyde
Physical and chemical data
| Boiling Point | 193.00 °C |
| Melting Point | -10.00 °C |
| Flash Point | 87.00 °C |
| Density | 1.02500 |
| Refractive Index | 1.52500 |
| Vapor Pressure | 0.368000 mmHg @ 25.00 C. (est) |
| LogP | 1.780 |
| Solubility | alcohol; dipropylene glycol; fixed oils |
| Appearance | colorless to pale yellow clear oily 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 | 0.27 % |
| Category 4 | Fine fragrance | 0.25 % |
| Category 5A | Body lotion | 0.064 % |
| Category 5B | Face cream | 0.064 % |
| Category 5C | Hand cream | 0.064 % |
| Category 5D | Baby creams, oils | 0.021 % |
| Category 6 | Oral care, mouthwash | 0.15 % |
| Category 7A | Rinse-off hair products | 0.52 % |
| Category 7B | Leave-on hair products | 0.52 % |
| Category 8 | Intimate and baby wipes | 0.021 % |
| 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 | 0.021 % |
| Category 11B | Minimal skin contact | 0.021 % |
| 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 |
|---|---|
| Benzyl Alcohol (ba) | 0.5 % |
| Benzaldehyde | 0.5 % |
IFRA regulated substances contained in this material. The interactive index derives the effective maximum concentration per category from them.
EU allergen declaration
| Substance | Share |
|---|---|
| Benzyl alcohol | 0.5 % |
| Benzaldehyde | 0.5 % |
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.