Series of semi-dyestuff used for producing dyeing stuff materials Phenylenediamine is also called PPDPure white, 99.9% minMelting point: 140°CBoiling point: 267°CWidely used for dyeing productions, packing in 50kg paper and iron drums, 14MT in20-inch FCL.Series products Para nitroaniline, Ortho nitroaniline, Ortho pheny lenediamino, 1,2,3-Benzotriazole; P-Phenylenediamine