Iopanoic acid,100 µg/mL,MeOH,1mL,

Formaldehyde-DNPH Level 3 (1.0ug/mL)

Phenanthryl-9-O-glucuronide, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 177194-36-4

Dinaphtho[1,2-b;2',1'-d]furan, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 239-69-0