Δ9-THC Carboxylic Acid A, 1000µg/ml in Acetonitrile, 1ml

1,413 µS/cm conductivity solution (box of 25x20mL sachet)

4-Nitrophenol, 10.0 µg/ml, Acetonitrile, 10ml

Methacrifos, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 30864-28-9