Tramadol-13C,d3 HCl, 100µg/ml in MeOH, 1ml

GC-IRMS Standards (C11(?13C: -26.11); C15 (?13C: -30.22); C20 (?13C: -33.06)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no.

D4-Folpet, 10mg

EPA Method 8270A - Analytes Mix #8