Prothiofos, 100 µg/ml, Acetonitrile, 1ml

rac 3,4-Dihydroxyphenylethylene Glycol-d5, 1mg

Sildenafil-d3 (N-methyl-d3-piperazine), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1126745-90-1

“Over the Counter” Analgesics