Standards; Pharmaceutical/API Drug Impurities/Metabolites;
应用:
4-Guanidinobutanoic acid is a guanidine derivative and a metabolite of the antipyretic Hao Jia Xu Re Qing. In patients with Spleen-yang-deficiency syndrome, 4-guanidinobutanoic acid was a metabolite found in urine, synthesized by gut microbiota.