Chlorpyrifos, 100µg/mL in MeOH, 1ml

2,3,4,5,6-Pentachlorobiphenyl-d5, 10µg/ml in CY, 5ml

Cefazolin sodium salt, certified, 0.1g

n-Hexanal-PFBOA derivative, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no.