Oxytetracycline, 1000μg/ml in MeOH, 1ml

2-Ethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 8916-98-8

Diazepam-d5, neat, Solvent-neat, Unit 50mg, # of units-1, Cas.no. 65854-76-4

2,3,5,6-Tetrachlorobiphenyl (65)