Reactiv Ammonium heptamolybdate tetrahydrate min. 99 %, extra pure , 500 g GBS7311.2 Vizualizare rapida
Reactiv 3,3'-Diaminobenzidine tetrahydrochloride min. 98 %, p.a. , 5 g GBSCN75.2 Vizualizare rapida