CAS: 42518-98-9 Molecular Formula: C5H2Cl2OS Molecular Weight (g/mol): 181.03 MDL Number: MFCD00043886 InChI Key: BMPDCQVRKDNUAP-UHFFFAOYSA-N Synonym: 5-chlorothiophene-2-carbonylchloride,5-chorothiophene-2-carbonyl chloride,5-chloro-2-thiophenecarbonyl chloride,5-chloro-thiophene-2-carbonyl chloride,5-chloro-2-thenoyl chloride,2-thiophenecarbonyl chloride, 5-chloro,pubchem16132,ksc235i7t,5-chlorothiophenecarbonyl chloride,5-chloro-2-thenoylchloride PubChem CID: 589223 IUPAC Name: 5-chlorothiophene-2-carbonyl chloride SMILES: ClC(=O)C1=CC=C(Cl)S1