Metformin-d6 HCl, 1000µg/ml in MeOH, 1ml

Tri-n-propyl phosphate-d21, 1.2ml x 50ug/ml, toluene

PAH/PCB Internal Standard Mix 2 0711,10 Naphthalene 0816,14 Phenanthrene 0239,20 Benzo[a]pyrene 2001,12 2,2’,4,5,5’-Pentachlorobiphenyl PCB 101 2005,12 2,2’,3,4,4’,5,5’-Heptachlorobiphenyl PCB 180 Conc: 0.01mg/ml in methanol

2-Methylthiopyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.