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4,6-Dihydrothieno[3,4-B]thiophene-2-carboxylic acid7712-05-2100 % similar 4,5,6,7-Tetrahydrobenzo[b]thiophene-2-carboxylic acid40133-07-160 % similar Dithieno[3,2-b:2′,3′-d]thiophene-2,6-dicarboxylic acid502764-53-644 % similar 2,5-Thiophenedicarboxylic acid4282-31-942 % similar 4,5-Dimethyl-2-thiophenecarboxylic acid40808-24-041 % similar 4,5-Dibromo-2-thiophenecarboxylic acid6324-10-341 % similar Thieno(3,2-b)thiophene-2-carboxylic acid1723-27-940 % similar Benzo[b]thiophene-2-carboxylic acid6314-28-940 % similar 5-Ethyl-thiophene-2-carboxylic acid23229-72-338 % similar 7-Chlorobenzo[b]thiophene-2-carboxylic acid90407-16-237 % similar 5-(Methylsulfanyl)thiophene-2-carboxylic acid20873-58-937 % similar 6-Bromobenzo[b]thiophene-2-carboxylic acid19075-58-236 % similar 4-Bromo-benzo[B]thiophene-2-carboxylic acid5194-37-636 % similar Thieno(2,3-b)pyridine-2-carboxylic acid59944-76-236 % similar 5-Fluorobenzo[b]thiophene-2-carboxylic acid70060-13-836 % similar 5-Methyl-2-thiophenecarboxylic acid1918-79-236 % similar 5-Chloro-2-thiophenecarboxylic acid24065-33-636 % similar 5-Fluorothiophene-2-carboxylic acid4377-58-636 % similar 5-Bromothiophene-2-carboxylic acid7311-63-936 % similar 4-Methyl-2-thiophenecarboxylic acid14282-78-135 % similar