Rifaximin, 100mg

Methyl-tert-butylsulfide, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 6163-64-0

4-Nitrobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 92-93-3

GC-IRMS Standards (C25 (?13C: -28.21); C30 (?13C: -28.60); C36 (?13C: -26.15)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no.