Table 9-1: Predicted sensitisers.
| Substance (INCI) name |
CAS number |
Structural alerts |
| Note: § Classified as R43. |
| p-tert.-Butyldihydrocinnamaldehyde§ |
18127-01-0 |
Schiff base |
| Citronellal |
106-23-0 |
Schiff base and possible prehapten |
| Citronellyl nitrile |
51566-62-2 |
Possible prehapten |
| Decanal |
112-31-2 |
Schiff base |
| 3,7-Dimethyl-1,6-nonadien-3-ol |
10339-55-6 |
Prehapten |
| Geranyl acetate |
105-87-3 |
Prehapten and prohapten |
| Isoamyl salicylate |
87-20-7 |
Acyltranfer agent |
| Methyl cinnamate |
103-26-4 |
Michael acceptor |
| Methylundecanal |
110-41-8 |
Schiff base |
| Myrcene |
123-35-3 |
Prehapten |
| Nerol |
106-25-2 |
Prehapten and prohapten |
| Nerolidol (isomer not specified) |
7212-44-4 |
Possible prehapten |
| Oxacyclohexadecenone |
34902-57-3 |
Michael acceptor |
| Phenethyl salicylate |
87-22-9 |
Acyltransfer agent |
| trans-Rose ketone-5 |
39872-57-6 |
Michael acceptor and possible prehapten |
Source:
SCCS, 
Opinion on Fragrance allergens in cosmetic products, pages 67-68