1,5-Naphthalenedisulfonic Acid Tetrahydrate, 25g

Parathion, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 56-38-2

4,6-Dinitro-2-methylphenol

Nitrofurantoin 13C3, 5mg