pelargonin
/ˌpɛləˈɡəʊnɪn/Biochemistry
noun
An anthocyanin (usually isolated as the red chloride, C27H31O15Cl) that is the colouring matter of zonal pelargoniums, and on hydrolysis gives pelargonidin and glucose.
Origin
Early 20th century; earliest use found in Chemical Abstracts. From German Pelargonin from scientific Latin Pelargon- (in Pelargonium) + German -in.