5-Bromoindole-3-carboxaldehyde
5-Bromoindole-3-carboxaldehyde (CAS: 877-03-2) is a halogenated indole derivative with the molecular formula C9H6BrNO and a molecular weight of 224.05 g/mol. This compound functions as a valuable building block in organic synthesis, particularly within the pharmaceutical and chemical research sectors. Its structure, featuring a bromo-substituted indole ring and an aldehyde functional group, allows for diverse chemical transformations. Supplied at 98% purity, it is suitable for research and development applications.

Organic Synthesis Intermediate
5-Bromoindole-3-carboxaldehyde serves as a key intermediate in the synthesis of more complex organic molecules. The aldehyde group readily participates in reactions such as Wittig, Grignard, and reductive aminations, while the bromo-indole core can undergo various coupling reactions.
Pharmaceutical Research
This compound is utilised in medicinal chemistry for the development of novel pharmaceutical agents. Its indole scaffold is a common feature in many biologically active compounds, making it a useful starting material for drug discovery programmes.
Heterocyclic Chemistry
As a functionalised heterocycle, it is employed in academic and industrial research for the construction of diverse heterocyclic frameworks. Its specific substitution pattern allows for targeted derivatisation and exploration of structure-activity relationships.
| Molecular weight | 224.05 |
|---|---|
| Empirical formula | C9H6BrNO |
| Assay | 98% |
| Melting point | 204-207 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 5-Bromoindole-3-carboxaldehyde used for?
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5-Bromoindole-3-carboxaldehyde is primarily used as a building block in organic synthesis, particularly for pharmaceutical research and the development of novel heterocyclic compounds. It is a valuable intermediate for creating more complex molecules.
What are the CAS number and formula for 5-Bromoindole-3-carboxaldehyde?
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The CAS number is 877-03-2, and the empirical formula is C9H6BrNO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Bromoindole-3-carboxaldehyde with a purity of 98% (assay). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated in the specifications.
How should 5-Bromoindole-3-carboxaldehyde be handled?
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Based on the GHS information, this compound may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves, should be used. Handle in a well-ventilated area.
Is 5-Bromoindole-3-carboxaldehyde a controlled substance?
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The provided data does not indicate that 5-Bromoindole-3-carboxaldehyde is a controlled substance.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions packs and ships chemicals according to international regulations for hazardous materials. We are experienced global exporters of fine chemicals, pharmaceutical intermediates, and laboratory reagents.
How can I request a quote or sample for 5-Bromoindole-3-carboxaldehyde?
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To request a quote or sample, please contact our sales department through the website or by phone. Our team will be happy to assist you with your requirements.
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