EPA Method 500 Series Internal Std #4

Alachlor D13 (2,6-diethylphenyl D13), 10mg

Mirtazapine, 1000µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 61337-67-5

Di-iso-nonyl phthalate in mixture with C8-10-branched alkyl o-phthalate , C9-rich, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 68515-48-0