Zilpaterol hydrochloride, 100 µg/ml, Water, 1ml

3,4-Dimethylpyridine,neat,neat,100mg,

D4-Ethylene thiourea, 10mg

2,3,3',4',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane