4-Bromo-2-thiophenecarboxylic acid

• CAT Number: M084324
• CAS Number: 16694-18-1
• Molecular Formula: C5H3BrO2S
• Molecular Weight: 207.04
• Purity: ≥95%
• Storage: Desiccate at RT
• IUPAC Name: 4-bromothiophene-2-carboxylic acid
• InChI: InChI=1S/C5H3BrO2S/c6-3-1-4(5(7)8)9-2-3/h1-2H,(H,7,8)
• InChIKey: HJZFPRVFLBBAMU-UHFFFAOYSA-N
• SMILES: C1=C(SC=C1Br)C(=O)O

4-Bromo-2-thiophenecarboxylic acid (Cat No.: M084324) is a heteroaromatic compound consisting of a thiophene ring substituted with a bromine atom at the 4-position and a carboxylic acid group at the 2-position. This light yellow to off-white solid serves as a valuable intermediate in the synthesis of pharmaceuticals, agrochemicals, and organic materials. The bromine atom enables cross-coupling reactions such as Suzuki and Stille, while the carboxylic acid offers further derivatization. Its electron-rich thiophene ring makes it useful in developing conjugated and bioactive molecules.