chlorogenin

Noun

 * 1)  A sapogenin, (1R,2S,4S,5'R,6R,7S,8R,9S,12S,13R,16S,18S,19S)-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-16,19-diol, present in the soap plant