Reactiv Nickel(II) chloride hexahydrate ≥ 97 %, extra pure , 2,5 kg GBS7312.4 Vizualizare rapida
Reactiv 3,3'-Diaminobenzidine tetrahydrochloride min. 98 %, p.a. , 10 g GBSCN75.3 Vizualizare rapida