Organophosphorus pesticides standard

Sulfamethoxazole, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 723-46-6

Di-n-butyl phthalate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 84-74-2

2,3-Naphthalenedicarboxylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 2169-87-1