Isoflavanes are a class of isoflavonoids, a type of polyphenolic compounds. They have the 3-phenylchroman (isoflavan, CAS number : 4737-26-2, molecular formula : C15H14O, exact mass : 210.1044646 u) backbone.
Lonchocarpus laxiflorus contains two isoflavanes : lonchocarpane and laxiflorane.