Ranitidine-d6 Hydrochloride (>90%), 1mg

Fenfuram, 100 µg/ml, Acetonitrile, 5ml

1,2,3,7,8-Pentachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

1,1-Difluoroethane, 20mg/mL in MeOH, 1ml