COD Calibration Standard

1-(3,4-Dichlorophenyl)-3-methylurea, 100 µg/ml, A

Mono-n-octyltin trichloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3091-25-6

Dichlorophen, 250mg