2,5-Bis(3,4,5-trimethoxyphenyl)tetrahydrofuran 99103-35-2 Furan, tetrahydro-2,5-bis(3,4,5-trimethoxyphenyl)-, (2R,5R)-rel- Furan, tetrahydro-2,5-bis(3,4,5-trimethoxyphenyl)-, trans- L 652731 L-652,731