Metamitron, 100 µg/ml, Acetonitrile, 5ml

1,3,4,7-Tetrachlorodibenzofuran , 1.2ml x 50ug/ml, nonane

Sildenafil citrate,100 µg base/mL,MeOH,1mL

Cyanocobalamine, 98% (dry weight basis),neat,neat,100mg,