Oxacillin

1,2-Dibromo-4-(1,2-dibromoethyl)cyclohexane, 100µg/ml in Toluene, 1ml

Fenthion-oxon-sulfoxide, 100µg/ml in AL, 5ml

Melamine (13C3,99%; Amino-15N3,98%) 100 µg/mL in Water, 1,2ml