2,2',3,4',5,5'-Hexachloro-4-biphenylol, 1.2ml x 50ug/ml, nonane

EPA Method 533 Isotope Performance Standard PDS, 1.2ml, methanol

4-Hydroxysulfadiazine,10 µg/mL,MeOH,1mL,

1,3-Dichlorobenzene, 1000mg