2,6-Di-tert-butyl-P-benzoquinone, 250mg

Ciprofloxacin HCl monohydrate, 100μg/ml in MeOH, 1ml

2,3,3',5,5'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

CLP Calibration Standard