Guanylurea-HCl, 100µg/ml in MeOH, 5ml

4-Bromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Volatile Mix C2, 2000µg/ml in MeOH, 1ml

(+/-)-Geosmin-d5,neat,neat,5mg