EPA Method 8270 PAH Standard

4,4'-Sulfonylbis(2,6-dibromophenol), 98%

Diltiazem hydrochloride, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 33286-22-5

4,4'-Dibromooctafluorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 10386-84-2