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Cyclobutane-1,2,3,4-tetracarboxylic dianhydride

Cyclobutanemethanol

Cyclobutane-1,2-dicarboxylic anhydride

1,1-Cyclobutanedicarboxylic acid

Cyclobutanecarboxylic acid

Cyclobutanecarboxaldehyde

Cyclobutanecarbonyl chloride

Cyclobenzaprine hydrochloride