Iopromide, 100µg/ml in Acetonitrile, 1ml

beta-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL,

3-Nitrobiphenyl,100 µg/mL,toluene,1mL,

Ethylene thiourea, 250mg