.alpha.-Acetyl-4-hydroxy-.beta.-(hydroxymethyl)-3-methoxy-cinnamic acid .gamma.-lactone 2(5H)-Furanone, 3-acetyl-4-(4-hydroxy-3-methoxyphenyl)- 3-Acetyl-4-(4-hydroxy-3-methoxyphenyl)-2(5H)-furanone 73839-65-3 NSC526468 WLN: T5OV EHJ CV1 DR DQ CO1