Benzo(a)pyrene

n-Propyl 4-hydroxybenzoate-2,3,5,6-d4, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1219802-67-1

Fentanyl-D5

Losartan potassium,neat,neat,50mg,