EPA Method 525 - Fortification Solution

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

Di-n-butyltin dichloride, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 683-18-1

2,4,4’-Tribromodiphenyl ether, 50µg/ml in IO, 1ml