Herbicide Calibration Check - WS

6-Nitrobenzo[a]pyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 63041-90-7

Octadecanoic acid (Stearic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 57-11-4

Phthalic-3,4,5,6-d4 acid,neat,neat,1g,