Heliotropin
Aroma Chemical Base Note CAS 120-57-0
Sweet, powdery and vanillic with an almond, cherry pie character and a soft anisic, floral facet. It builds heliotrope, mimosa and amber accords with a comforting sweetness.
Odor profile
| Note | Base Note |
| Descriptor 1 | Anisic |
| Descriptor 2 | Floral |
| Descriptor 3 | Powdery |
| Odor Impact1 | 90 |
| Impact Level | Medium |
| Tenacity1 | 45 h |
| Tenacity2 | 212 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Both tenacity figures are blotter life. The two labs use different evaluation protocols, so the numbers are not directly comparable — read them as two independent readings, not as a contradiction.
Identification
| CAS Number | 120-57-0 |
| INCI Name | Heliotropine |
| Category | Aroma Chemical |
| Formula | C8H6O3 |
| Mol. Weight | 150.13 |
| IUPAC Name | 1,3-benzodioxole-5-carbaldehyde |
| InChIKey | SATCULPHIDQDRE-UHFFFAOYSA-N |
Synonyms
Piperonal, Methylene Dioxybenzaldehyde, dioxymethylene Procatechuic Aldehyde, Protocatechuic Aldehyde methylene Ether, Piperonyl Aldehyde, Heliotropal, benzo[1,3]dioxole-5-carbaldehyde, benzo[d][1,3]dioxole-5-carbaldehyde, 2H-benzo[d]1,3-dioxolene-5-carbaldehyde, 1,3-benzodioxole-5-carbaldehyde, 2H-1,3-benzodioxole-5-carbaldehyde, 1,3-benzodioxole-5-carboxaldehyde, 3,4-dihydroxybenzaldehyde methylene ketal, 3,4-dimethylene dioxybenzaldehyde, dioxymethylene protocatechuic aldehyde, formaldehyde protechualdehyde-3,4-cyclic acetal, 5-formyl-1,3-benzodioxole, geliotropin, heliobase, heliotropin natural, heliotropin recrystallized extra FCC, heliotropine, heliotropine crystals, heliotropine crystals FCC, heliotropine natural, heliotropine synthetic, 3,4-methylene dioxy) benzaldehyde, 3,4-bis( methylene dioxy) benzaldehyde, 3,4-( methylene dioxy)-1,3-benzodioxole-5-benzaldehyde, 3,4-methylene dioxybenzaldehyde, 3,4-methylene protocatechuic aldehyde, 3,4-( methylenedioxy)benzaldehyde, 3,4-methylenedioxybenzaldehyde, piperonal nat., piperonaldehyde, piperonylaldehyde
Physical and chemical data
| Boiling Point | 262.8 °C |
| Melting Point | 37.2 °C |
| Vapor Pressure | 1 mmHg at 189 °F (NTP, 1992) |
| LogP | 1.1 |
| Solubility | In water, 3.5X10+3 mg/L at 20 °C |
| Appearance | Piperonal appears as colorless lustrous crystals. (NTP, 1992) |
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.