WS inorganic disinfection by-products, A

Paraoxon-methyl, 10µg/ml in Acetonitrile, 10ml

n-Butyl 4-hydroxybenzoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 94-26-8

Benzo[ghi]perylene, 100mg