Diphenylamine Back Catalog number: 79520 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-1248-S 1,2,4,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 95295 Propanol Standard Price on request 94752 3,3’-Dimethoxybenzidine Price on request