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.
(A) Coproporphyrinogen III (B) isopraeroside IV (C) scopolin (D) nodakenin. Orange solid lines and green dashed lines represent pi-pi interactions and hydrogen bond interactions, respectively. Only polar hydrogens were shown within the illustrations for clarity.
