Acetaldehyde
Aroma Chemical Top Note CAS 75-07-0
A sharp pungent aldehydic note with an ethereal fruity character. Volatile and diffusive, it brings a juicy lift to fruity and exotic accords in traces.
Odor profile
| Note | Top Note |
| Descriptor 1 | Fruity |
| Descriptor 2 | Apple |
| Descriptor 3 | Aldehydic |
| Tenacity2 | 1 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 75-07-0 |
| INCI Name | Acetaldehyde |
| Category | Aroma Chemical |
| Formula | C2H4O |
| Mol. Weight | 44.05 |
| IUPAC Name | acetaldehyde |
| InChIKey | IKHGUXGNUITLKF-UHFFFAOYSA-N |
Synonyms
ethanal, acetic aldehyde, ethyl aldehyde, Acetylaldehyde, Acetaldehyd, Aldeide acetica, Acetic ethanol, Octowy aldehyd, Aldehyde acetique, RCRA waste number U001, Go1n1zpr3b, Acetaldehyde Phenolic, nat. acetaldehyde, acetaldehyde (natural), acetaldehyde 10% in ethanol natural, acetaldehyde 10% in ETOH natural, acetaldehyde 100% natural, acetaldehyde 20% (natural), acetaldehyde 50% alcohol natural, acetaldehyde 50% (natural), acetaldehyde 50% + ethanol 50%, acetaldehyde 50% + triacetin 50%, acetaldehyde 50% ETOH synthetic, acetaldehyde 50% in benzyl benzoate synthetic, acetaldehyde 50% in Dlimonene natural, acetaldehyde 50% in ethanol, acetaldehyde 50% in ethanol natural, acetaldehyde 50% in ethanol synthetic, acetaldehyde 50% in ETOH natural, acetaldehyde 50% in orange oil 5-fold natural, acetaldehyde 50% in orange oil natural, acetaldehyde 50% in orange oil synthetic, acetaldehyde 50% PG natural, acetaldehyde natural, acetaldehyde natural 50% in ethanol, acetaldehyde 50% + orange terpenes 50%, acetaldehyde 50% + water 50%, acetaldehyde 50% in 5 fold orange oil synthetic, acetaldehyde 50% in orange terpenes natural, acetaldehyde natural 50% in orange terpenes
Physical and chemical data
| Boiling Point | 21.1 °C |
| Melting Point | -125.00 °C |
| Flash Point | -40.0 °C |
| Density | 0.7834 |
| Refractive Index | 1.3316 |
| Vapor Pressure | 400 mmHg at 40.8 °F ; 760 mmHg at 68.4 °F (NTP, 1992) |
| LogP | -0.3 |
| Solubility | Miscible with water /1X10+6 mg/L at 25 °C/ |
| Appearance | Acetaldehyde appears as a clear colorless liquid with a pungent choking odor. Flash point -36 °F. Boiling point 69 °F. Density 6.5 lb / gal. Vapors are heaver than air and irritate the mucous membrane |
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.