2,3,4,4'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Quinine hemisulfate,1000 µg base/mL,MeOH,1mL

Vanillin, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 121-33-5

1,2,4,5,8-Pentachloronaphthalene, 1.2mL x 50ug/mL, nonane