Theobromine, 100µg/ml in MeOH, 5ml

D4-1,4-Dichlorobenzene, 100mg

(+/-)-Geosmin-d5,100 µg/mL,MeOH,1mL

N-Ethyl-n-perfluorobutanesulfonamide (N-EtFBSA), 50μg/ml in Acetonitrile, 1ml