PCB Isomer Standard “Dutch 7”, 10µg/ml in Isooctane, 1ml

Metformin-d6 HCl, 1000µg/ml in MeOH, 1ml

2,3',4,4',5-Pentachlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 31508-00-6

alpha-Endosulfan, 100 µg/ml, Acetonitrile, 5ml