5-Chloro-3-(chlorosulfonyl)-2-thiophenecarboxylic acid methyl ester
[CAS# 126910-68-7]

Identification

• Name: 5-Chloro-3-(chlorosulfonyl)-2-thiophenecarboxylic acid methyl ester
• Molecular Formula: C₆H₄Cl₂O₄S₂
• Molecular Weight: 275.13
• CAS Registry Number: 126910-68-7
• EC Number: 603-173-6

Properties

• Solubility: Very slightly soluble (0.14 g/L) (25 °C), Calc.^*
• Density: 1.663±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 50-52 °C^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2015 ACD/Labs)

^** Wagner, Hans Peter

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Serious eye damage	Eye Dam.	1	H318
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Skin sensitization	Skin Sens.	1	H317