Cymene Para
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 |
| Tenacity1 | 2 h |
| Tenacity2 | 2 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 | 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
P-cymene, camphogen, para- cymol, dolcymene, para- methyl cumene, methyl isopropyl benzene, methyl-1-isopropyl benzene, methyl-4-(1-methyl ethyl) benzene, methyl-4-isopropyl benzene, methyl-4-propan-2-ylbenzene, para-iso propyl methyl benzene, 4-iso propyl toluene, para-iso propyl toluene, 1-iso propyl-4-methyl benzene, Berje, para-Cymene, Fleurchem, John D. Walsh, Moellhausen, Nippon Terpene, Penta, Polarome, Para-cym, 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-, p-cymol, para-cymol, p-mentha-1,3,5-triene, p-methyl cumene, cymene, 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 contained in this material. The interactive index derives the effective maximum concentration per category from them.
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.