Benzoic acid sodium salt, 1g

Chloroform-13C,2000 µg/mL,MeOH,1mL,

Chlorpyrifos, 100µg/mL in MeOH, 1ml

2,3,3',5,5',6-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74472-46-1