WHO PCB Extraction Standard, 100pg/µl in nonane, 1,2ml

2-sec-Butyl-3-methoxypyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 24168-70-5

Ba, 1000 µg/mL in 2% HNO3, 100ml

Methabenzthiazuron