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CN 2921 51 19 · o-Phenylenediamine, m-phenylenediamine, p-phenylenediamine, diaminotoluenes, and their halogenated, sulphonated, nitrated and nitrosated derivatives; salts thereof (excl. m-phenylenediamine of a purity by weight of >= 99% and containing <= 1% by weight of water, <= 200 mg/kg of o-phenylenediamine and <= 450 mg/kg of p-phenylenediamine) · Tradaro