2,3,4,5-Tetrachloroanisole, 100 µg/ml, Methanol,

EPA Method 8060 QC Check Solution

Guanylurea, 1000µg/ml in Water, 1ml

Dinaphtho[2,1-b;1',2'-d]furan, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 194-63-8