4.4'-DDE (13C12), 100µg/ml in n-Nonane, 1,2ml

ASTM D-4815 Valve Timing Mix

η-1,2,5,6,9,10-Hexabromocyclododecane, 1.2ml x 50ug/ml, toluene

4,4'-Diaminodiphenylmethane, 250mg