P-Methyltetrahydroquinoline
Aroma Chemical Base Note CAS 91-61-2
A powerful animalic note with a civet character and a soft leather facet. Used in traces, it adds an ambergris depth to compositions.
Odor profile
| Note | Base Note |
| Descriptor 1 | Animal-like |
| Descriptor 2 | Amber |
| Descriptor 3 | Indolic |
| Tenacity2 | 184 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 91-61-2 |
| INCI Name | Tetrahydro-6-methylquinoline |
| Category | Aroma Chemical |
| Formula | C10H13N |
| Mol. Weight | 147.22 |
| IUPAC Name | 6-methyl-1,2,3,4-tetrahydroquinoline |
| InChIKey | XOKMRXSMOHCNIX-UHFFFAOYSA-N |
Synonyms
animal quinoline, civettal, p-methyl tetrahydroquinoline, para-methyl tetrahydroquinoline, 6-methyl-1,2,3,4-tetrahydroquinoline, para-methyltetrahydroquinoline, tetra hydro para methyl quinoline, tetrahydro para methyl quinoline, tetrahydro paramethyl quinoline, tetrahydro-4-methyl quinoline, 1,2,3,4-tetrahydro-6-methyl quinoline, 1,2,3,4-tetrahydro-6-methylquinoline, tetrahydro-p-methylquinoline, tetrahydro-para-methyl quinoline, tetrahydroparamethylquinoline
Physical and chemical data
| Boiling Point | 264.24 °C |
| Vapor Pressure | 0.010000 mmHg @ 25.00 C. (est) |
| LogP | 2.937 |
| Solubility | alcohol; water, 176.9 mg/L @ 25 C (est); cream |
| Appearance | colorless to pale yellow clear liquid |
Regulatory status
IFRA maximum concentrations
| Category | Use | Limit in the finished product |
|---|---|---|
| Category 1 | Lip products, toys | Not restricted |
| Category 2 | Deodorants, antiperspirants | Not restricted |
| Category 3 | Eye products | Not restricted |
| Category 4 | Fine fragrance | Not restricted |
| Category 5A | Body lotion | Not restricted |
| Category 5B | Face cream | Not restricted |
| Category 5C | Hand cream | Not restricted |
| Category 5D | Baby creams, oils | Not restricted |
| Category 6 | Oral care, mouthwash | Not restricted |
| Category 7A | Rinse-off hair products | Not restricted |
| Category 7B | Leave-on hair products | Not restricted |
| Category 8 | Intimate and baby wipes | Not restricted |
| Category 9 | Soap, shampoo, rinse-off | Not restricted |
| Category 10A | Household care, hand contact | Not restricted |
| Category 10B | Aerosol air fresheners | Not restricted |
| Category 11A | Intended skin contact | Not restricted |
| Category 11B | Minimal skin contact | Not restricted |
| Category 12 | No skin contact, candles | Not restricted |
| IFRA Amendment | 44 |
| Restriction Type | Specification |
| Critical Effect | Potential Of Nitrosamine Formation |
| Specification | The material has been identified for having the potential of forming nitrosamines in nitrosating systems. Downstream users therefore have to be notified of the presence of the material and its potential, to be able to consider adequate protective measures. |
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.