Phthalic acid, mono-n-butyl ester, certified, 0.1g

1,2-Dimethylanthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 53666-94-7

Alachlor (ring 13C6), 100ug/ml in n-Nonane, 1,2ml

Sodium Formate (CHO2-)