1-(3,4-Dichlorophenyl)urea, 100 µg/ml, Acetonitri

2,3-Dichloro-1-propanediol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 616-23-9

EPA Method 1666Labeled Standard

Selenium (Se)