Ofloxacin, 100µg/ml in Acetonitrile, 5ml

Acetaminophen-d4 (Paracetamol-d4),100 µg/mL,MeOH,1mL

17ß(H),21 alpha(H)-(22R)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 79951-54-5

2,2',3,3',4,6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,