Detailed Product Description Diphenylamine Application: diphenylamine is mainly used to synthesize rubber antiager, dye, medicine intermediate, lubricating oil antioxidant, and powder stabilizer. Property: white crystal, becoming gray or brownish yellow once exposed to light, Specific gravity: 1.160 (20/20°) Boiling point: 302, lightly dissolving in water, dissolving in ethanol, diethyl ether, ...