(-)-Cotinine

Pesticide Standard

n-Tetracosane, ?13C: -26.42, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 646-31-1

2,2',3,4,5',6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,