2(3H)-Furanone, dihydro-3,4-bis((4-hydroxy-3-methoxyphenyl)methyl)-, (3R-trans)- 3R,4R-Bis((4-hydroxy-3-methoxyphenyl)methyl)dihydro-2(3H)-furanone 41328-88-5 580-72-3 Matairesinol