4-Bromo-1-methylindole
4-Bromo-1-methylindole (CAS 590417-55-3) is a valuable heterocyclic organic compound with the molecular formula C9H8BrN and a molecular weight of 210.07 g/mol. This brominated indole derivative serves as a key building block in organic synthesis, particularly in the development of complex molecules within the pharmaceutical and chemical research sectors. Its structure facilitates versatile chemical transformations.
- IUPAC
- 4-Bromo-1-methyl-1H-indole
- Synonyms
- 4-Bromo-1-methyl-1H-indole

Pharmaceutical Intermediate
4-Bromo-1-methylindole is utilised in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs). Its indole core and bromine substituent offer strategic points for molecular elaboration.
Chemical Synthesis Reagent
This compound acts as a versatile building block for creating more complex organic structures. It is frequently employed in cross-coupling reactions and other transformations for fine chemical synthesis.
Research and Development
In academic and industrial research, 4-Bromo-1-methylindole is a useful reagent for exploring new synthetic pathways and developing novel chemical entities.
| Molecular weight | 210.07 |
|---|---|
| Empirical formula | C9H8BrN |
| Assay | 95% |
| Density | 1.456 g/mL at 25 °C |
| Refractive index | n20/D 1.636 |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Flash point | >110 °C / >230 °F |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| Safety statements (S) | 26 |
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 4-Bromo-1-methylindole used for?
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4-Bromo-1-methylindole is primarily used as a building block in organic synthesis, particularly for pharmaceutical intermediates and in chemical research and development.
What is the CAS number and molecular formula for 4-Bromo-1-methylindole?
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The CAS number for 4-Bromo-1-methylindole is 590417-55-3, and its molecular formula is C9H8BrN.
What grade and purity does Tech Serve Solutions supply for 4-Bromo-1-methylindole?
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Tech Serve Solutions supplies 4-Bromo-1-methylindole with an assay of 95%. We do not represent this product as USP, BP, EP, or other pharmacopoeial grades.
What are the primary safety hazards associated with 4-Bromo-1-methylindole?
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4-Bromo-1-methylindole is classified with GHS07 symbol and a Warning signal word. It carries hazard statements H302 (Harmful if swallowed) and H319 (Causes serious eye irritation). Handle with appropriate personal protective equipment.
Is 4-Bromo-1-methylindole available for export?
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Yes, Tech Serve Solutions specialises in the global supply and export of fine chemicals, including 4-Bromo-1-methylindole.
How can I request a quote or sample for 4-Bromo-1-methylindole?
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Please contact our sales team via the website or by phone to request a quote or arrange a sample of 4-Bromo-1-methylindole.
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