Metamitron, 10 µg/ml, Acetonitrile, 10ml

1,2-Dibromo-4-(1,2-dibromomethyl)cyclohexane,50 µg/mL,MeOH,1mL,

Stigmasteryl tosylate

Method 1613 Clean-up Standard, 8ng/ml in Nonane, 20ml