D10-Carbophenothion, 100 µg/ml, Acetone, 1ml

Methacrylic acid-ethyl ester, certified, 1ml

15N3-Simazine, 100 µg/ml, Acetonitrile, 1ml

1,2,3,4,6,7,9-Heptachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene