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In the title compound, C
21H
24O
4, the molecules exist as hydrogen-bonded dimers. The hydrogen bonds occur pairwise, involve the carboxylic acid groups and are of the form C=O
HO—C. The O
O distances are 2.53 (1) and 2.59 (1) Å.
Supporting information
| Crystallographic Information File (CIF) Contains datablocks frtuck, global |
| Structure factor file (CIF format) Contains datablock frtuck |
CCDC reference: 126240
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