geranylgeranyl diphosphate <=> (13E)-labda-7,13-dien-15-yl diphosphate
geranylgeranyl diphosphate <=> (13e)-labda-7,13-dien-15-yl diphosphate
geranylgeranyl diphosphate <=> (13E)-labda-7,13-dien-15-yl diphosphate
geranylgeranyl diphosphate <=> (13e)-labda-7,13-dien-15-yl diphosphate