D5-threo-Chloramphenicol, 100µg/ml, Acetonitrile, 1ml

2-(4-Carboxyphenyl)-1H-benzimidazole, neat, Solvent-neat, Unit 10MG, # of units-20, Cas.no. 66631-29-6

1,2-Dimethylnaphthalene

Ethyl-ß-D-6-glucuronide-d5, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no.