Chem abstract number:
A new metabolite, 3-carboxy-2,4-diphenyl-but-2-enoic anhydride, produced by Aspergillus nidulans. Hamasaki, Takashi; Nakajima, Hiromitsu; Yokota, Takao; Kimura, Yasuo. Agricultural and Biological Chemistry (1983), 47(4), 891-2.
Aspergillus Species known to produce this metabolite:
3d image file .c3d (requires Chem3d http://www.cambridgesoft.com/Ensemble_for_Chemistry/ChemBio3D/):
jmol file (.mol) requires Java to run (http://www.java.com/en/download/help/enable_panel.xml):