Fenbutatin oxide, 10.0 µg/ml, Methanol, 10ml

Norflurazon-desmethyl, 10mg

GC-IRMS Standards (C15 (?13C: -30.22); C20 (?13C: -33.06); C25 (?13C: -28.21)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no.

525.2 Calibration Standard