17alpha-Ethynylestradiol,1000 µg/mL,MeOH,1mL,

4-Ethylpyridine,neat,neat,100mg,

Isocaffeine (1,3,9-Trimethylxanthine), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 519-32-4

Metazachlor ethane sulfonic acid, 100µg/ml in Acetonitrile, 1ml