Phosphonoacetic acid (Standard) is the analytical standard of Phosphonoacetic acid (HY-128744). This product is intended for research and analytical applications. Phosphonoacetic acid is an endogenous metabolite and antiviral agent. Phosphonoacetic acid is active against orthopoxviruses and herpes viruses. Phosphonoacetic acid can inhibit HSV DNA synthesis and virus-specific DNA polymerase activity, and affect the synthesis of late viral proteins[1].