Citronellol
Aroma Chemical Heart Note CAS 106-22-9
A fresh rosy floral note with a clean red rose bud character and a soft citrus facet. A key rose and geranium building block, it adds a natural floral roundness.
Odor profile
| Note | Heart Note |
| Descriptor 1 | Floral |
| Descriptor 2 | Rose |
| Descriptor 3 | Citrus |
| Odor Impact1 | 100 |
| Impact Level | Medium |
| Tenacity1 | 20 h |
| Tenacity2 | 56 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 | 106-22-9 |
| CAS 2 | 7540-51-4 |
| INCI Name | Citronellol |
| Category | Aroma Chemical |
| Formula | C10H20O |
| Mol. Weight | 156.26 |
| IUPAC Name | 3,7-dimethyloct-6-en-1-ol |
| InChIKey | QMVPMAAFGQKVCJ-UHFFFAOYSA-N |
Synonyms
Dl-Citronellol, dl-3,7-Dimethyl-6-octenol, Cephrol 3,7-Dimethyl-6-octen-1-ol, dl Citronellol, Cephrol, L-Citronellol, .beta.-citronellol, (+/-)-beta-citronellol, beta-citronellol, citronellol (ex eucalyptus citriodora), citronellol dextro, citronellol 70, citronellol 700, citronellol 750, citronellol 80, citronellol 85, citronellol 90/92, citronellol 95, citronellol 950, citronellol 96/98, citronellol AJ, citronellol BRI, citronellol coeur, citronellol coeur FCC (synthetic), citronellol extra, citronellol extra 93/95% FCC, citronellol extra FCC, citronellol FCC, citronellol givco extra (Givaudan), citronellol HMS citronnelle, citronellol natural, citronellol prime, citronellol pure, citronellol pure FCC, citronellol regular, citronellol synthetic FCC, natural, (.+/-.)-citronellol, (+/-)-citronellol, (±)-citronellol, citronellol
Physical and chemical data
| Boiling Point | 224.0 °C |
| Melting Point | -20.0 °C |
| Flash Point | 106 to 108 °C |
| Density | 0.855 |
| Refractive Index | 1.4559 |
| Vapor Pressure | 0.04 [mmHg] |
| LogP | 3.2 |
| Solubility | In water, 200 mg/L at 25 °C |
| Appearance | CBI; Liquid; Dry Powder; Liquid |
Regulatory status
IFRA maximum concentrations
| Category | Use | Limit in the finished product |
|---|---|---|
| Category 1 | Lip products, toys | 0.34 % |
| Category 2 | Deodorants, antiperspirants | 0.66 % |
| Category 3 | Eye products | 0.41 % |
| Category 4 | Fine fragrance | 8.0 % |
| Category 5A | Body lotion | 2.6 % |
| Category 5B | Face cream | 0.39 % |
| Category 5C | Hand cream | 0.55 % |
| Category 5D | Baby creams, oils | 0.13 % |
| Category 6 | Oral care, mouthwash | 0.023 % |
| Category 7A | Rinse-off hair products | 0.46 % |
| Category 7B | Leave-on hair products | 0.46 % |
| Category 8 | Intimate and baby wipes | 0.13 % |
| Category 9 | Soap, shampoo, rinse-off | 1.3 % |
| Category 10A | Household care, hand contact | 0.89 % |
| Category 10B | Aerosol air fresheners | 3.5 % |
| Category 11A | Intended skin contact | 0.13 % |
| Category 11B | Minimal skin contact | 0.13 % |
| Category 12 | No skin contact, candles | 90 % |
| IFRA Amendment | 52 |
| Restriction Type | Restriction |
| Critical Effect | Dermal Sensitization And Systemic Toxicity |
Restricted components
| Component | Share |
|---|---|
| Geraniol | 1 % |
| Farnesol | 0.5 % |
| Linalool | 0.1 % |
IFRA regulated substances contained in this material. The interactive index derives the effective maximum concentration per category from them.
EU allergen declaration
| Substance | Share |
|---|---|
| Citronellol | 98 % |
| Geraniol | 1 % |
| Farnesol | 0.5 % |
| Linalool | 0.1 % |
| Terpineol | 0.05 % |
Substances that must be named in the ingredient list under Annex III of Regulation (EC) 1223/2009, as amended by Regulation (EU) 2023/1545. Where a range was given, the upper bound is shown.
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.