Organochlorine pesticides standard

Ritalinic acid-d9 HCl (piperazine-d9) (erythro+threo), neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no.

Benfluralin, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 1861-40-1

Pyridine