2,3-Butanediol, certified, 0.25g

Pesticide Mix #1

1H,1H,2H,2H-Perfluorooctane sulfonic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 27619-97-2

2,4,5-Tribromoiodobenzene, 100µg/mL, Solvent-isooctane, Unit 1ml, # of units-1, Cas.no.