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2,4-Dioxo-4-thiophen-2-yl-butyric acid methyl ester57409-51-5100 % similar 3-Oxo-3-thiophen-2-yl-propionic acid ethyl ester13669-10-853 % similar 1-(2-Thienyl)-1-propanone13679-75-951 % similar Methyl 2-thiophenecarboxylate5380-42-751 % similar 1-(2-Thienyl)-1-butanone5333-83-549 % similar Thenoyltrifluoroacetone326-91-048 % similar 2-Bromo-1-(thiophen-2-yl)ethan-1-one10531-41-648 % similar Ethyl 2-thienylglyoxylate4075-58-545 % similar 2-Thenoylacetonitrile33898-90-745 % similar 2-Octanoylthiophene30711-41-244 % similar 3-Dimethylamino-1-(2-thienyl)-1-propanone hydrochloride5424-47-543 % similar γ-Oxo-2-thiophenebutanoic acid4653-08-143 % similar Methyl acetopyruvate20577-61-143 % similar 4,4,5,5,6,6,6-Heptafluoro-1-(2-thienyl)-1,3-hexanedione559-94-442 % similar Methyl (2-thienyl)acetate19432-68-942 % similar Ethyl 2-thiophenecarboxylate2810-04-042 % similar Copper(I) thiophene-2-carboxylate68986-76-540 % similar Thiophene-2-carboxylic anhydride25569-97-540 % similar 2-Acetylthiophene88-15-340 % similar 2-Thienyl ketone704-38-139 % similar