2-Nitrotoluene, 100 µg/ml, Methanol, 5ml

2,3,6,7-Tetrachlorobiphenylene, 1.2ml x 50ug/ml, nonane

Aflatoxin B2, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 7220-81-7

Hexavalent Chromium (Cr 6+)