Ozone Acetaldehyde
POPULAR AND WEIRD / green · ozonic · fresh
Ozone Acetaldehyde
| Category | POPULAR AND WEIRD |
| Subcategory | green · ozonic · fresh |
| Origin | |
| Volatility | Top Note |
| Botanical | N/A — synthetic molecule |
| Appearance | colorless clear liquid |
| Producing Countries | Synthetic — manufactured worldwide |
| Pyramid | Top |
Fresh, metallic-ozonic with a sharp, electric quality. A synthetic ozonic material evoking rain-washed air — crisp, mineral, with a clean metallic edge.
Scent
Evolution over time
Immediately
Immediately
Sharp metallic-ozonic burst. Electric and clean.
After a few hours
After a few hours
Watery-fresh heart. Clean mineral quality.
After a few days
After a few days
Quick fade. Very volatile.
The Full Story
Did You Know?
Did you know?
The fresh smell after rain — petrichor — was named by Australian mineralogists Bear and Thomas in 1964, from the Greek 'petra' (stone) and 'ichor' (the fluid that flows through the veins of gods in Greek mythology).
Extraction & Chemistry
Extraction method: Fully synthetic. Designed to mimic the olfactory quality of ozone and fresh rain.
| Molecular Formula | C6H12O3 |
| CAS Number | 123-63-7 |
| Botanical Name | N/A — synthetic molecule |
| IFRA Status | No known restrictions |
| Synonyms | Paraldehyde, 2,4,6-Trimethyl-1,3,5-trioxane, Acetaldehyde trimer |
| Physical Properties | |
| Appearance | colorless clear liquid |
| Boiling Point | 123.00 to 124.00 °C. @ 760.00 mm Hg |
| Flash Point | 75.00 °F. TCC ( 23.89 °C. ) |
| Specific Gravity | 0.99400 @ 25.00 °C. |
| Refractive Index | 1.40500 @ 20.00 °C. |
| Melting Point | 11.00 to 13.00 °C. @ 760.00 mm Hg |
In Perfumery
Top-note modifier in aquatic, fresh, and ozonic compositions. Provides electric freshness and rain-washed quality. Used in marine accords, clean-fresh compositions, and as a freshness modifier. Must be used with restraint to avoid a harsh chemical impression.