U-{13C11}-Chloramphenicol

2,2',3,3'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Olanzapine 10-N-glucuronide, 10µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

2-Chloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene