p-Cymene CAS#99-87-6
Excellent Organic Solvent Compatibility: 4-Isopropyltoluene is insoluble in water but readily soluble in ethanol, ether, acetone, chloroform, and other organic solvents, providing good compatibility in chemical processes.
Versatile Organic Synthesis Applications: As an important organic compound, 4-isopropyltoluene can be widely used as a raw material or intermediate in organic synthesis.
Suitable for Coating Formulations: 4-Isopropyltoluene is an effective component for preparing paint thinners, offering reliable solvent performance in coating applications.
Stable Physical Properties: 4-Isopropyltoluene appears as a colorless and transparent liquid with consistent chemical characteristics, making it suitable for various industrial applications.
p-Cymene Chemical Properties
| Melting point | -68 °C |
| Boiling point | 176-178 °C(lit.) |
| density | 0.86 g/mL at 25 °C(lit.) |
| vapor density | 4.62 (vs air) |
| vapor pressure | 1.5 mm Hg ( 20 °C) |
| refractive index | n20/D 1.490(lit.) |
| FEMA | 2356 | P-CYMENE |
| Fp | 117 °F |
| storage temp. | 2-8°C |
| solubility | Chloroform (Sparingly), Ethyl Acetate (Slightly) |
| form | Liquid |
| color | Clear |
| Odor | Mild, pleasant; aromatic, solvent-type. |
| Odor Type | terpenic |
| Odor Threshold | 0.057ppm |
| explosive limit | 0.056 |
| Water Solubility | PRACTICALLY INSOLUBLE |
| Merck | 142763 |
| JECFA Number | 1325 |
| BRN | 1903377 |
| Dielectric constant | 2.3（17℃） |
| Stability: | Stable. Flammable. Incompatible with strong oxidizing agents, strong acids, strong bases. |
| InChIKey | HFPZCAJZSCWRBC-UHFFFAOYSA-N |
| LogP | 4.1-4.8 at 20℃ |
| CAS DataBase Reference | 99-87-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzene, 1-methyl-4-(1-methylethyl)-(99-87-6) |
| EPA Substance Registry System | p-Cymene (99-87-6) |
| Hazard Codes | Xi |
| Risk Statements | 10-36/37/38 |
| Safety Statements | 26-36 |
| RIDADR | UN 2046 3/PG 3 |
| WGK Germany | 2 |
| RTECS | GZ5950000 |
| Autoignition Temperature | 817 °F |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29029090 |
| Hazardous Substances Data | 99-87-6(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 4750 mg/kg (Jenner) |
Product Application of p-Cymene CAS#99-87-6
p-Cymene is used as a raw material for the preparation of p-cresol and acetone, and serves as an important intermediate in the production of dyes, pharmaceuticals, and fragrances.
It is naturally present in various essential oils and is also used in related applications due to its expectorant, cough-relieving, and respiratory soothing properties.
