... BR) Other names: Brassins, BR, Kayaminori Natural botanic sourece of plant yeild enhancer Chemical name: (22R, 23R, 24S, )-2a, ... -oxa-5a-cholestan-6-one)-lactoneChemical family: Natural PGR & Plant extract Molecule Formular: C28H46O6Molecular weight: 480. 68 Physical & chemical ... extracted from cole pollens &plant tissue, and apply to plant by sparying. Regulate the growth of plant. Best additive to ...