Chemical Name: 1-Isopropyl-4-methylbenzene
Source: Natural (from essential oils) / Synthetic.
| Appearance | Clear, colourless to pale yellow liquid |
|---|---|
| Odour | Mild, sweet, citrus-like, aromatic |
| Taste | Mild, aromatic |
| Solubility | Soluble in alcohol & oils; insoluble in water |
| Heavy Metals | ≤ 10 ppm |
|---|---|
| Moisture Content | ≤ 0.1 % |
| Residual Solvents | As per ICH limits |
| Isomer Purity | Para-isomer predominant |
| Assay (GC) | ≥ 99.0 % |
|---|---|
| Specific Gravity @ 25 °C | 0.855 – 0.865 |
| Refractive Index @ 20 °C | 1.489 – 1.495 |
| Boiling Point | ~177 – 178 °C |
| Flash Point | ~47 °C |
| Acid Value | ≤ 0.5 mg KOH/g |
| Test Parameter | Specification | Result |
|---|---|---|
| Appearance | Clear colourless liquid [cite: 149] | Conforms [cite: 149] |
| Assay (GC) | ≥ 99.0 % [cite: 149] | 99.3 % [cite: 149] |
| Specific Gravity @ 25 °C | 0.855 – 0.865 [cite: 149] | 0.861 [cite: 149] |
| Refractive Index @ 20 °C | 1.489 – 1.495 [cite: 149] | 1.492 [cite: 149] |
| Moisture Content | ≤ 0.1 % [cite: 149] | 0.03 % [cite: 149] |
Conclusion: The tested batch conforms to specification and is suitable for flavour, fragrance, pharmaceutical, and industrial applications[cite: 150].