Hydratropic Aldehyde
Aroma Chemical CAS 93-53-8
A fresh sharp green note with a hyacinth leaf character and a soft lilac facet. Diffusive and natural, it adds a green floral lift to muguet and hyacinth accords.
Odor profile
| Descriptor 1 | Green |
| Descriptor 2 | Floral |
| Descriptor 3 | Rose |
| Odor Impact1 | 500 |
| Tenacity2 | 24 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Identification
| CAS Number | 93-53-8 |
| INCI Name | Hydratropic aldehyde |
| Category | Aroma Chemical |
| Formula | C9H10O |
| Mol. Weight | 134.17 |
| IUPAC Name | 2-phenylpropanal |
| InChIKey | IQVAERDLDAZARL-UHFFFAOYSA-N |
Synonyms
2-Phenylpropionaldehyde; alpha Methyl phenylacetaldehyde; alpha-Phenyl propionaldehyde; 2-Phenylpropanal; Hyacinthal; alpha-Methyl tolualdehyde; benzeneacetalaldehyde, a-methyl-; cumene aldehyde; alpha-formyl ethyl benzene; a-formylethylbenzene; hydratrop aldehyde; hydratropa aldehyde; hydratropaldehyde; hydratropic aldehyde natural; hydratropic aldehyde special; hydrotropal (Tadimety); hydrotropic aldehyde; alpha-methyl benzene acetaldehyde; alpha-methyl phenyl acetaldehyde; a-methyl phenylacetaldehyde; a-methyl-a-toluic aldehyde; alpha-methyl-alpha-toluic aldehyde; a-methylbenzeneacetaldehyde; a-methylphenylacetaldehyde; a-methyltolualdehyde; alpha-methyltolualdehyde; 2-phenyl propanal; alpha-phenyl propanal; 2-phenyl propionaldehyde; a-phenyl propionaldehyde; 2-phenyl-1-propanal; a-phenylpropanal; phenylpropanal; (rac)-2-phenylpropionaldehyde; a-phenylpropionaldehyde; DL-2-phenylpropionaldehyde; propanal, phenyl-
Physical and chemical data
| Boiling Point | 222 °C |
| Flash Point | 76.11 °C |
| Density | 0.998 |
| Refractive Index | 1.515 |
| Vapor Pressure | 0.294000 mmHg @ 25.00 C. (est) |
| LogP | 1.9 |
| Solubility | Soluble in most fixed oils; Slightly soluble in propylene glycol; Insoluble in glycerin |
| Appearance | Liquid; [Alfa Aesar MSDS] |
Regulatory status
IFRA maximum concentrations
| Category | Use | Limit in the finished product |
|---|---|---|
| Category 1 | Lip products, toys | 0.029 % |
| Category 2 | Deodorants, antiperspirants | 0.0087 % |
| Category 3 | Eye products | 0.096 % |
| Category 4 | Fine fragrance | 0.16 % |
| Category 5A | Body lotion | 0.041 % |
| Category 5B | Face cream | 0.041 % |
| Category 5C | Hand cream | 0.041 % |
| Category 5D | Baby creams, oils | 0.014 % |
| Category 6 | Oral care, mouthwash | 0.096 % |
| Category 7A | Rinse-off hair products | 0.19 % |
| Category 7B | Leave-on hair products | 0.19 % |
| Category 8 | Intimate and baby wipes | 0.014 % |
| Category 9 | Soap, shampoo, rinse-off | 0.32 % |
| Category 10A | Household care, hand contact | 0.32 % |
| Category 10B | Aerosol air fresheners | 0.77 % |
| Category 11A | Intended skin contact | 0.014 % |
| Category 11B | Minimal skin contact | 0.014 % |
| Category 12 | No skin contact, candles | 31 % |
| IFRA Amendment | 49 |
| Restriction Type | Restriction |
| Critical Effect | Dermal Sensitization And Systemic Toxicity |
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.