Galanin (1-13)-spantide I is a chimeric peptide composed of the N-terminal fragment of galanin (amino acids 1-13) and spantide, a known substance P receptor antagonist. Galanin (1-13)-spantide I has a high affinity for spinal galanin receptor (Kd=1.16 nM). Galanin (1-13)-spantide I can be used to study the effects of galanin on feeding behavior.

Chrysophanol 8-O-β-D-(6’-O-galloyl)glucopyranoside, an anthraquinone glucoside, can be isolated from Rheum undulatum L. Chrysophanol 8-O-β-D-(6’-O-galloyl)glucopyranoside has potent DPPH radical and ?O2- scavenging activity.

3α,5α-Bufotalidin