1-Methylindole,neat,neat,10mg,

γ-1,2,5,6,9,10-Hexabromo[13C12]cyclododecane, 1.2ml x 50ug/ml, toluene

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

13C3-Caffeine, 10mg