Parathion-methyl, 100 µg/ml, Acetonitrile, 5ml

Chlorophylls, Na salt, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 1406-65-1

3,4,5-Trichlorobiphenyl ,100 µg/mL,isooctane,1mL,

2-Ethylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 872-55-9