Perfluoro-n-[1,2,3,4-13C4]octanoic acid, 50µg/ml in MeOH, 1,2ml

Acetaminophene-d4 (Paracetamol-d4), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 64315-36-2

2,3,3',4,4',5-Hexachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 38380-08-4

Norfluoxetine-d5 (propyl-1,1,2,2,3-d5), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1185132-92-6