5-Chloro-2-benzothiophenecarboxylic acid
[CAS# 13771-75-0]

Identification

• Name: 5-Chloro-2-benzothiophenecarboxylic acid
• Synonyms: 5-Chlorobenzo[b]thiophene-2-carboxylic acid
• Molecular Formula: C₉H₅ClO₂S
• Molecular Weight: 212.65
• CAS Registry Number: 13771-75-0
• EC Number: 824-899-1

Properties

• Solubility: Very slightly soluble (0.17 g/L) (25 ºC), Calc.^*
• Density: 1.546±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 270-275 ºC^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2016 ACD/Labs)

^** Buchanan, Ronald D.; US 3452039 A 1969.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2A	H319