CONOSTAN Standard S-21, 100 ppm, 100g

6-Chlorobenzo[a]pyrene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 21248-01-1

trans-1,3-Dichloropropene, 250mg

1,3-Bis(4-nitrophenyl)urea, 50mg