Description

4-epi-oxytetracycline (oxytetracycline related compound A) is an oxytetracycline metabolite often formed in weak acid environments and high temperatures. Other oxytetracycline metabolites include α-apo-oxytetracycline (oxytetracycline related compound D) and β-apo-oxytetracycline (oxytetracycline related compound E). 4-epi-oxytetracycline is soluble in water (0.5 mg/mL), methanol, and DMSO.

Application

4-epi-oxytetracycline is most frequently used as a secondary reference standard.