PRODUCT Properties
| Boiling point: | 80 °C |
| Density | 1.179 |
| refractive index | 1.579 |
| Flash point: | 82-85°C |
| storage temp. | Keep in dark place,Inert atmosphere,2-8°C |
| form | Liquid |
| color | Clear yellow to brown |
| Sensitive | Air Sensitive |
Safety
| Symbol(GHS) | ![]() GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335-H302 |
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a |
| Hazard Codes | Xn |
| Risk Statements | 22 |
| WGK Germany | 3 |
| HS Code | 29349990 |



![4,5,6,7-Tetrahydrobenzo[b]thiophene-2-carboxylic acid](https://img.chemicalbook.com/CAS/GIF/40133-07-1.gif)

![4,5,6,7-Tetrahydrobenzo[b]thiophene-2-carboxamide](https://img.chemicalbook.com/StructureFile/ChemBookStructure3/GIF/CB1263110.gif)

