FIGURE 2.
Chemical structures of the main active ingredients of Rhubarb. (A) chrysophanol, (B) rhein, (C) emodin, (D) aloe-emodin, (E) emodin methyl ether.
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.