Doxycycline hyclate (Standard) is the analytical standard of Doxycycline hyclate. This product is intended for research and analytical applications. Doxycycline hyclate, an antibiotic, is an orally active and broad-spectrum metalloproteinase (MMP) inhibitor[1]. Doxycycline hyclate shows antibacterial activity and anti-cancer cell proliferation activity[1][2][3][4][5].