Caffeine,100 µg/mL,MeOH,1mL,

Pentafluoropropionic anhydride, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 356-42-3

1-Bromodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Vitamin A acid,neat,neat,10mg,