Synonyms: 2,4-Pentadienoicacid, 5-(1-hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl)-3-methyl-,(Z,E)-(-)- (8CI); 2,4-Pentadienoic acid,5-(1-hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl)-3-methyl-, [R-(Z,E)]-;(-)-(R)-Abscisic acid; (-)-(cis,trans)-Abscisic acid; (-)-ABA; (-)-Abscisicacid; (R)-(-)-Abscisic acid; (R)-Abscisic acid; PBI 145