U-{13C11}-Chloramphenicol

(±)-Atenolol-d7 (N-isopropyl-d7),100 µg/mL,MeOH,1mL,

2-Amino-1,6-dimethylfuro[3,2-e]imidazo[4,5-b]pyridine, 0,5mg

Ethenzamide