SWEROSIDE

Sweroside, froM Swertia biMaculata

(4aS,5R,6S)-5-Ethenyl-6-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4,4a,5,6-tetrahydro-3H-pyrano[3,4-c]pyran-1-one