4-Epianhydrochlortetracycline (hydrochloride)
4-Epianhydrochlortetracycline hydrochloride is an inhibitor of matrix metalloproteinases (MMPs), particularly gelatinase B (Gelatinase B, EC 3.4.24.35), with inhibition rates of 100% at 500 μg/mL, 70% at 125 μg/mL, and 40% at 31 μg/mL. 4-Epianhydrochlortetracycline hydrochloride is promising for research in chronic inflammatory diseases.