5-Ethyl-7-methylbenzo[b]carbazole, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 4133-22-6

GC-IRMS Standards (C15 (?13C: -30.22); C20 (?13C: -33.06); C25 (?13C: -28.21)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no.

1-Methylpyrene

Fentanyl