2,4’-Dinitrodiphenylamine

n-Tetracosane, ?13C: -26.42, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 646-31-1

2,2',3,4-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,

EPA Method 551.1 Internal Standard