EPA Method 642 - Analytes

Benzo[b]naphtho[2,3-d]furan, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 243-42-5

Ethyl acetate, 20mg/mL in MeOH, 1ml

RCS-4 N-(5-Hydroxypentyl) metabolite, 50µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1379604-66-6