Potassium Phthalimide
CAS: 1074-82-4
Category: Phthalimide
| Purity | Industrial Grade ≥98%; Reagent Grade ≥99%; High-Purity Grade ≥99.5% |
| Molecular Formula | C8H4KNO2 |
| Molecular Weight | 169.22 |
| Appearance | White to off-white crystalline powder or flakes, odorless, slightly hygroscopic solid |
| Packaging | 25 kg/fiber drum with polyethylene inner bag; 500 g, 1 kg, 5 kg aluminum foil bags for laboratory and pharmaceutical applications |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR spectroscopy (characteristic imide carbonyl absorption around 1700–1800 cm⁻¹) and potassium identification test; Purity — HPLC or titration method; Assay of potassium phthalimide — Acid-base titration or potentiometric titration; Moisture — Karl Fischer titration (ASTM E203); Loss on drying — Gravimetric analysis; Residual solvents — GC analysis; Heavy metals — ICP-MS or atomic absorption spectroscopy (AAS). |
| Storage Notes | Store in a cool, dry, well-ventilated warehouse away from moisture, heat, and direct sunlight. Keep containers tightly sealed. Avoid contact with strong acids, strong oxidizing agents, and excessive humidity. Handle under dry conditions because the material is hygroscopic. |
| Lead Time | 10 days |
Potassium Phthalimide is an important organic synthesis intermediate and nitrogen nucleophile. It is widely used in the Gabriel synthesis for the preparation of primary amines by reacting with alkyl halides. It is also used as an intermediate in pharmaceutical synthesis, agrochemical production, dyes, and fine chemical manufacturing.