Dye Intermediates, Pyrazolone Derivatives, Stilbene Derivatives, Intermediates For Dyestuffs, Bulk Drug Intermediates, Phthalimide, 4 Nitro Phthalimide, Phthalamide, 4 Nitro Phthalamide, Potassium Phthalimide, Tri-Methylsulfoxonium Iodide, 2 Acetamido Benzoic Acid, 4 Sulphamido Benzoic Acid