Silicon (Si), 1000µg/ml in 2%-HNO3/Water, 100ml

Clarithromycin-d3, 100µg/ml in MeOH, 1ml

11-OH-delta-9-THC, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

Irgarol 1051, certified, 0.1g