3-Bromo-7-azaindole
3-Bromo-7-azaindole (CAS: 74420-15-8, Formula: C7H5BrN2, MW: 197.03) is a halogenated heterocyclic building block. This compound serves as a valuable starting material in the synthesis of complex organic molecules, particularly within 7-azaindole chemistry. Its structure makes it useful for introducing the azaindole core into various chemical scaffolds, facilitating research and development in medicinal chemistry and materials science.
- IUPAC
- 3-Bromo-1H-pyrrolo[2,3-b]pyridine
- Synonyms
- 3-Bromo-1H-pyrrolo[2,3-b]pyridine

Synthetic Intermediate
3-Bromo-7-azaindole is a key intermediate for organic synthesis. It is particularly useful as a starter in 7-azaindole chemistry, enabling the construction of more complex molecular architectures.
Research and Development
This compound is employed in research laboratories for the development of novel chemical entities. Its functional groups allow for diverse chemical transformations, aiding in the exploration of new synthetic pathways.
Building Block for Heterocycles
As a halogenated heterocyclic building block, 3-Bromo-7-azaindole is instrumental in creating new heterocyclic compounds. It provides a convenient route to functionalized azaindole derivatives for various applications.
| Molecular weight | 197.03 |
|---|---|
| Empirical formula | C7H5BrN2 |
| Assay | 97% |
| Application | Useful starter in 7-azaindole chemistry1 |
| Melting point | 185-189 °C |


Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-36/37/39 |
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-Bromo-7-azaindole used for?
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3-Bromo-7-azaindole is primarily used as a synthetic intermediate and a building block in chemical synthesis, particularly within 7-azaindole chemistry for research and development purposes.
What are the CAS number and chemical formula for 3-Bromo-7-azaindole?
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The CAS number for 3-Bromo-7-azaindole is 74420-15-8, and its chemical formula is C7H5BrN2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Bromo-7-azaindole with a purity of 97%. We do not represent this product as USP, BP, or EP grade.
How should 3-Bromo-7-azaindole be handled safely?
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3-Bromo-7-azaindole is a Danger substance, harmful if swallowed, causing skin irritation and serious eye damage, and may cause respiratory irritation (H301-H315-H318-H335). Handle with appropriate personal protective equipment including a dust mask type N95, eyeshields, faceshields, and gloves. Ensure adequate ventilation.
Is 3-Bromo-7-azaindole a controlled substance?
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The provided data does not indicate that 3-Bromo-7-azaindole is a controlled substance.
How is 3-Bromo-7-azaindole shipped and exported?
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Shipments of 3-Bromo-7-azaindole are classified under UN 2811, 6.1 / PGIII, indicating it is a toxic solid, organic, n.o.s. Tech Serve Solutions is experienced in global export of chemical reagents.
How can I request a quote or sample of 3-Bromo-7-azaindole?
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To request a quote or a sample of 3-Bromo-7-azaindole, please contact our sales department through the website or by phone.
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