EPA Method 505Mix

n-Butyl iso-butyl phthalate (n-Butyl 2-methylpropyl phthalate), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17851-53-5

2-Ethylhexyl 2,3,4,5-tetrabromobenzoate, 1.2ml x 50ug/ml, toluene

2-Methylnaphthalene