4-Ethyltoluene, 100 µg/ml, Methanol, 1ml

Bumetanide,neat,neat,10mg,

Alachlor D13 (2,6-diethylphenyl D13), 100 ng/µl, 1.1ml

2,4,6-Tribromo[13C6]phenol, 1.2ml x 100ug/ml, toluene