beta-Endosulfan, 100 µg/ml, Acetonitrile, 5ml

Cycloate

EPA Method 552,552.1,552.2 Internal Std

4,4'-Dimethylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 613-33-2