4-Bromo-3-methylbenzoic acid7697-28-130 % similar 5-Bromo-2-methylbenzoic acid79669-49-130 % similar 5-Bromo-3-thiophenecarboxylic acid100523-84-030 % similar 4-Bromo-3-thiophenecarboxylic acid16694-17-030 % similar 4-Methylthiophene-3-carboxylic acid78071-30-430 % similar