Product Description of 5-Chloro-3-methylbenzo[b]thiophene (CAS#19404-18-3)
5-Chloro-3-methylbenzo[b]thiophene (CAS#19404-18-3) is a halogen-modified heterocyclic substance. It is frequently applied as a tailored biochemical reagent for proteomics research, and also functions as a critical intermediate within organic synthesis. Being a substituted benzothiophene derivative, it carries substantial significance for laboratory investigations and fine chemical development. This compound is categorized as an irritant, so adequate safety measures must be followed throughout its handling.

5-CHLORO-3-METHYLBENZO[B]THIOPHENE CAS#19404-18-3 Chemical Properties
Melting point | 33 °C |
Boiling point | 87 °C |
density | 1.293±0.06 g/cm3(Predicted) |
storage temp. | 2-8°C |
solubility | soluble in Methanol |
form | powder to lump |
color | White to Yellow to Orange |
CAS DataBase Reference | 19404-18-3(CAS DataBase Reference) |
Hazard Codes | Xi,Xn |
Risk Statements | 36/37/38-22 |
Safety Statements | 26-37/39 |
Hazard Note | Irritant |
HS Code | 29309090 |

Product Application of 5-Chloro-3-methylbenzo[b]thiophene (CAS#19404-18-3)
5-Chloro-3-methylbenzo[b]thiophene functions as a vital pharmaceutical intermediate and is extensively deployed for the construction of active pharmaceutical ingredients and their associated chemical derivatives.


