Appearance: Yellow or yellow green PowderAssay (HPLC): 1) 2-Mercaptopyridine: 98% min 2) 2,2’-Dithiodipyridine: 2.0% max. 3) Each unspec. Impurity: 0.5%maxSulphates ash: 0.5%maxLoss on drying: 0.5%maxPackage: 25kg/ fibre drum
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