3-Methylbenzothiophene
3-Methylbenzothiophene (CAS 1455-18-1, C9H8S) is a heterocyclic organic compound with a molecular weight of 148.22 g/mol. This benzothiophene derivative is a valuable building block in organic synthesis, particularly for creating more complex molecules within the pharmaceutical and materials science sectors. It is supplied by Tech Serve Solutions with an assay of 96% for research and development purposes.

Organic Synthesis Intermediate
3-Methylbenzothiophene serves as a key intermediate in the synthesis of various organic compounds. Its structure allows for further functionalization, making it useful for constructing complex molecular architectures.
Building Block for Heterocycles
As a benzothiophene derivative, it is employed in the construction of more elaborate heterocyclic systems. These systems are often found in biologically active molecules and advanced materials.
Research and Development
This compound is utilised in laboratory settings for exploring new chemical reactions and developing novel compounds. Its availability supports diverse research initiatives in medicinal chemistry and materials science.
| Molecular weight | 148.22 |
|---|---|
| Empirical formula | C9H8S |
| Assay | 96% |
| Boiling point | 72-74 °C/2 mmHg(lit.) |
| Density | 1.106 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.6240(lit.) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 104 °C / 219.2 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
| Safety statements (S) | 36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3-Methylbenzothiophene used for?
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3-Methylbenzothiophene is used as an intermediate and building block in organic synthesis, particularly for creating complex heterocyclic compounds in research and development settings.
What is the CAS number and formula for 3-Methylbenzothiophene?
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The CAS number for 3-Methylbenzothiophene is 1455-18-1, and its empirical formula is C9H8S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Methylbenzothiophene with an assay of 96%. TSS does not represent this product as USP, BP, or EP grade.
How should 3-Methylbenzothiophene be handled safely?
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3-Methylbenzothiophene is classified as harmful if swallowed (H302). Safe handling requires appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, and should be performed in a well-ventilated area. Always consult the Safety Data Sheet (SDS) before use.
Does TSS export 3-Methylbenzothiophene?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 3-Methylbenzothiophene, and can accommodate international shipping requests.
How can I request a quote or sample for 3-Methylbenzothiophene?
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To request a quote or sample of 3-Methylbenzothiophene, please contact our sales team through the website or by phone, providing your specific requirements.
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