Formaldehyde-DNPH Level 2 (0.5ug/mL)

9-Ethyl-3-nitrocarbazole, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 86-20-4

Levulinic acid

Hexaconazole, 10.0 µg/ml, Ethyl acetate, 10ml