624B Internal / Surrogate Standard

3-Methoxytyramine-d4 hydrochloride,100 µg base/mL,MeOH,1mL,

Hexachlorobenzene-13C6, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93952-14-8

4-Aminobiphenyl