beta-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL,

Semi-Volatile Standard

9-trans-Octadecenoic acid, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 112-79-8

4,4'-DDE, 10.0 µg/ml, Ethyl acetate, 10ml