Synonyms: 7H-Furo[3,2-g][1]benzopyran-7-one,4-[(2-hydroxy-3-methyl-3-butenyl)oxy]-, (R)-;7H-Furo[3,2-g][1]benzopyran-7-one, 4-[(2-hydroxy-3-methyl-3-butenyl)oxy]-,(R)-(+)- (8CI); 7H-Furo[3,2-g][1]benzopyran-7-one,4-[[(2R)-2-hydroxy-3-methyl-3-butenyl]oxy]- (9CI); Pangelin; R-(+)-Pangelin