EPA Method 507 Nitrogen Phosphorus Pesticide

4,4'-DDD, 100 µg/ml, Toluene, 5ml

(+)-Longicyclene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1137-12-8

(-)-(S)-Levetiracetam,1000 µg/mL,MeOH,1mL