6.44 ppt TDS solution (box of 25x20mL sachet)

4,5-Dichlorocatechol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 3428-24-8

PCB Congeners (10 ppm)

Derivative of 1,6-HDIP, 1000µg/ml in DMSO, 1ml