Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Chemical structure of diadenosine 5′,5‴-P1,P4-tetraphosphate (Ap4A) and its analogs. Compounds: 1, diadenosine 5′,5″-P1,P4-dithiotetraphosphate; 2, diadenosine 5′,5‴-P2,P3-chloromethylenetetraphosphate; 3, diadenosine-5′,5‴-P1-thio-P2,P3-chloromethylenetetraphosphate; 4, diadenosine-5′,5‴-P1,P4-dithio-P2,P3-chloromethylenetetraphosphate.
