2,5-Dichloro thiophene 3172-52-9 2,5-Dichloro thiopheneProduct name2,5-Dichloro thiopheneSynonyms5-Chloro-2-thienyl chloride;NSC 60527;CAS No.3172-52-9Molecular weight153.02Molecular formulaC4H2Cl2SMelting Point-41 - -40 °CBoiling Point158.9 °C at 760 mmHgAppearanceClear, Colorless to Light Yellow LiquidAssay98.0%min 2,5-Dichloro thiophene 3172-52-9