Verapamil,1000 µg/mL,MeOH,1mL,

2,4,4',5-Tetrachlorodiphenyl ether, 1.2ml x 50ug/ml, nonane

Purified asfalthenes from North Sea Oil, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no.

ICP-MS Calibration Standard