10035-27-5 1399-63-9 3,4-Dimethyl-2,5-bis(4-hydroxy-3-methoxyphenyl)furan 99750-50-2 GR 12 GR-12 Phenol, 4,4'-(3,4-dimethyl-2,5-furandiyl)bis(2-methoxy- alpha-Guaiaconic acid