Naphthalene

Trimethoprim

3,4-Dimethylthieno[2,3-b]thiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17502-58-1

Atrazine 13C3, 100μg/mL in Acetone, 1ml