Hexen-2-Al
Aroma Chemical Top Note CAS 6728-26-3
A sharp green note with an aldehydic character and a soft fatty facet. Used in traces, it brings crunch and a fresh green lift to apple and green accords.
Odor profile
| Note | Top Note |
| Descriptor 1 | Green |
| Descriptor 2 | Aldehydic |
| Descriptor 3 | Floral |
| Tenacity2 | 8 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 6728-26-3 |
| INCI Name | Trans-2-hexenal |
| Category | Aroma Chemical |
| Formula | C6H10O |
| Mol. Weight | 98.14 |
| IUPAC Name | (E)-hex-2-enal |
| InChIKey | MBDOYVRWFFCFHM-SNAWJCMRSA-N |
Synonyms
(E)-2-Hexenal, 2-trans-Hexenal, 2-Hexenal, (2E)-, 69Jx3air1i, Hex-2-enal, (E)-Hex-2-enal, trans-2-Hexen-1-al, trans-Hex-2-enal, beta-Propyl acrolein, (E)-, Trans-2-hexenal, (E)-hex-2-en-1-al, (2E)-hex-2-enal, hex-2(trans)-enal, (2E)-2-hexen-1-al, (E)-2-hexen-1-al, trans-2-hexen-1-al natural, (2E)-2-hexenal, T2 hexenal, trans-2-hexenal 10% in ETOH natural, trans-2-hexenal 5% in ETOH natural, trans-2-hexenal 50% in ETOH natural, trans-2-hexenal 50% natural, trans-2-hexenal FCC, trans-2-hexenal nat, trans-2-hexenal natural, hexenal trans-2 FCC, hexenal trans-2 FCC natural, trans-2-hexenyl aldehyde, (E)-beta-propyl acrolein, Leaf aldehyde, trans-2-hexenal (leaf aldehyde), (E)-leaf aldehyde
Physical and chemical data
| Boiling Point | 146.5 °C |
| Flash Point | 38.33 °C |
| Density | 0.841 |
| Refractive Index | 1.443 |
| Vapor Pressure | 6.6 [mmHg] |
| LogP | 1.5 |
| Solubility | Soluble in propylene glycol and most fixed oils; Very slightly soluble in water |
| Appearance | CBI; Liquid |
Regulatory status
IFRA maximum concentrations
| Category | Use | Limit in the finished product |
|---|---|---|
| Category 1 | Lip products, toys | 0.0014 % |
| Category 2 | Deodorants, antiperspirants | 0.00041 % |
| Category 3 | Eye products | 0.0083 % |
| Category 4 | Fine fragrance | 0.0077 % |
| Category 5A | Body lotion | 0.0020 % |
| Category 5B | Face cream | 0.0020 % |
| Category 5C | Hand cream | 0.0020 % |
| Category 5D | Baby creams, oils | 0.00067 % |
| Category 6 | Oral care, mouthwash | 0.0045 % |
| Category 7A | Rinse-off hair products | 0.016 % |
| Category 7B | Leave-on hair products | 0.016 % |
| Category 8 | Intimate and baby wipes | 0.00067 % |
| Category 9 | Soap, shampoo, rinse-off | 0.015 % |
| Category 10A | Household care, hand contact | 0.054 % |
| Category 10B | Aerosol air fresheners | 0.054 % |
| Category 11A | Intended skin contact | 0.00067 % |
| Category 11B | Minimal skin contact | 0.00067 % |
| Category 12 | No skin contact, candles | Not restricted |
| IFRA Amendment | 51 |
| 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.