Difloxacin hydrochloride,neat,neat,250mg,

2,6-Dibromonaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 13720-06-4

Benz[a]anthracene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1718-53-2

Phoxim, 1000µg/ml in MeOH, 1ml