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Figure 1 Thermal ellipsoid plot (Barbour, 2001) of the two mol­ecules of C18H20N2O4 at the 70% probability level; hydrogen atoms are drawn as spheres of arbitrary radius.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 67| Part 2| January 2011| Page o531
doi:10.1107/S1600536811003217
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