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.
Structure and charge distribution of Bisartan-A, a bis-alkylated imidazole biphenyltetrazole at pH 7.4. The structure of BisA is illustrated in the upper left panel and electrostatic charge distribution in the lower image of Bisartan-A. Negatively charged regions = red; neutral to positive regions = green to blue. Graph by Ridgway et al. [22].
