Iohexol, 100 µg/ml in Acetonitrile, 5ml

2,4-Dinitro-1-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 605-69-6

Phthalic acid, bis-n-pentyl ester, 250mg

S-Metolachlor, 100 µg/ml, Acetone, 1ml