Ethoxysulfuron, 100 µg/ml, Acetonitrile, 1ml

Isobutyl acetate,1000 µg/mL,MeOH,1mL,

13C3-Melamine, 10mg

n-Heptadecane, ?13C: - 25.72, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-78-7