p-Cymene
Aroma Chemical Top Note CAS 99-87-6
Fresh, light citrus with a terpenic, woody character and a soft spicy nuance. It adds a clean terpenic lift to citrus and woody accords.
Odor profile
| Note | Top Note |
| Descriptor 1 | Citrus |
| Descriptor 2 | Lemon |
| Descriptor 3 | Green |
| Odor Impact1 | 250 |
| Tenacity2 | 2 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Identification
| CAS Number | 99-87-6 |
| INCI Name | P-cymene |
| Category | Aroma Chemical |
| Formula | C10H14 |
| Mol. Weight | 134.22 |
| IUPAC Name | 1-methyl-4-propan-2-ylbenzene |
| InChIKey | HFPZCAJZSCWRBC-UHFFFAOYSA-N |
Synonyms
camphogen; para-cymol; dolcymene; para-methyl cumene; methyl-4-(1-methyl ethyl) benzene; para-iso propyl methyl benzene; 4-iso propyl toluene; para-iso propyl toluene; 1-iso propyl-4-methyl benzene; benzene, 1-isopropyl-4-methyl-; benzene, 1-methyl-4-(1-methylethyl)-; cumene, p-methyl-; p-cumidine; 4-cymene; para-cymene 70% (non citrus) natural; p-cymene FCC; p-cymene natural; para-cymene P & F; cymene para FCC; para-cymene PF; p-cymol; p-mentha-1,3,5-triene; p-methyl cumene; cymene
Physical and chemical data
| Boiling Point | 177.2 °C |
| Melting Point | -67.9 °C |
| Flash Point | 47.2 °C |
| Density | 0.8573 |
| Refractive Index | 1.4909 |
| Vapor Pressure | 1.46 [mmHg] |
| LogP | 4.1 |
| Solubility | In water, 23.4 mg/L at 25 °C |
| Appearance | P-cymene is a colorless liquid with a mild pleasant odor. Floats on water. (USCG, 1999) |
Regulatory status
Restricted components
| Component | Share |
|---|---|
| D-Limonene | 0.0707 % |
IFRA regulated substances declared for this material. For naturals — which are mixtures of many molecules — the interactive index derives the effective maximum concentration per category from them. On single molecules these shares are purity traces from the supplier specification; they are far too small to limit use and are therefore not counted.
EU allergen declaration
| Substance | Share |
|---|---|
| Limonene | 0.0707 % |
| Pinene | 0.024 % |
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.