... rubber antiager, dye, medicine intermediate, lubricating oil antioxidant 3.SGS,MSDS Diphenylamine(DPA) CAS NO.:122-39-4 Application: diphenylamine is ... , dissolving in ethanol, diethyl ether, benzene, dissolving in thick inorganic acid solution but separating if diluted by water Molecular formula: (C6H5)2NH ...