Benzo[b]thiophene-5-carboxylic acid
[CAS# 2060-64-2]

Identification

• Name: Benzo[b]thiophene-5-carboxylic acid
• Synonyms: 1-Benzothiophene-5-carboxylic acid; Benzothiophene-5-carboxylic acid
• Molecular Formula: C₉H₆O₂S
• Molecular Weight: 178.21
• CAS Registry Number: 2060-64-2
• EC Number: 695-327-4

Properties

• Solubility: Very slightly soluble (0.68 g/L) (25 ºC), Calc.^*
• Density: 1.419±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 211-212 ºC (water )^**

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

^** Badger, G. M.; Journal of the Chemical Society 1957, P2624-30.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H302
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Eye irritation	Eye Irrit.	2A	H319