EPA Method 505 Pesticides

4-Methyldiphenylsulfide, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3699-01-2

EPA Method 502/524 Volatile Standard, 2000µg/ml in MeOH, 1ml

O,O-Diethylthiophosphate-13C2, sodium salt