Isocyclocitral
Aroma Chemical Top Note CAS 1335-66-6
A sharp green note with a leafy herbal character and an aldehydic edge. Earthy and natural, it adds a fresh green lift to cologne and herbal accords.
Odor profile
| Note | Top Note |
| Descriptor 1 | Green |
| Descriptor 2 | Fresh |
| Descriptor 3 | Herbal |
| Odor Impact1 | 250 |
| Impact Level | Medium |
| Tenacity1 | 3 h |
| Tenacity2 | 16 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 | 1335-66-6 |
| INCI Name | Isocyclocitral |
| Category | Aroma Chemical |
| Formula | C20H32O2 |
| Mol. Weight | 304.5 |
| IUPAC Name | 2,4,6-trimethylcyclohex-3-ene-1-carbaldehyde;3,5,6-trimethylcyclohex-3-ene-1-carbaldehyde |
| InChIKey | AEXLFXYEFLKADK-UHFFFAOYSA-N |
Synonyms
3,5,6-Trimethyl-3-cyclohexen-1-carboxaldehyde, 2,4,6-Trimethyl-4-cyclohexen-1-carboxaldehyde, symmertric iso Cyclocitral, meta iso Cyclocitral, iso Cyclocitral, Sa761, iso cyclo citral (IFF), iso cyclovert, 1-formyl-3,5,6-trimethyl-3-cyclohexene and 1-formyl-2,4,6-trimethyl-3-cyclohexene, 2,4,6-trimethyl-3-cyclohexene-1-carboxaldehyde, 2,4,6-and 2,3,5-trimethyl-4-cyclohexene-1-carboxaldehyde, 2,4,6-trimethylcyclohex-3-ene-1-carbaldehyde, iso leaf
Physical and chemical data
| Boiling Point | 214.00 °C |
| Melting Point | -55.00 °C |
| Flash Point | 77.78 °C |
| Density | 0.92000 |
| Refractive Index | 1.46800 |
| Vapor Pressure | 0.250000 mmHg @ 25.00 C. |
| LogP | 2.870 |
| Solubility | alcohol; water, 106 mg/L @ 20 C (exp); alcoholic lotion |
| Appearance | Liquid |
Regulatory status
IFRA maximum concentrations
| Category | Use | Limit in the finished product |
|---|---|---|
| Category 1 | Lip products, toys | 0.54 % |
| Category 2 | Deodorants, antiperspirants | 0.16 % |
| Category 3 | Eye products | 3.2 % |
| Category 4 | Fine fragrance | 3.0 % |
| Category 5A | Body lotion | 0.76 % |
| Category 5B | Face cream | 0.76 % |
| Category 5C | Hand cream | 0.76 % |
| Category 5D | Baby creams, oils | 0.76 % |
| Category 6 | Oral care, mouthwash | 1.8 % |
| Category 7A | Rinse-off hair products | 6.1 % |
| Category 7B | Leave-on hair products | 6.1 % |
| Category 8 | Intimate and baby wipes | 0.32 % |
| Category 9 | Soap, shampoo, rinse-off | 5.9 % |
| Category 10A | Household care, hand contact | 21 % |
| Category 10B | Aerosol air fresheners | 21 % |
| Category 11A | Intended skin contact | 12 % |
| Category 11B | Minimal skin contact | 12 % |
| Category 12 | No skin contact, candles | Not restricted |
| IFRA Amendment | 49 |
| Restriction Type | Restriction |
| Critical Effect | Dermal Sensitization |
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.