5-Bromo-7-iodoindole
5-Bromo-7-iodoindole (CAS: 123020-20-2), with molecular formula C8H5BrIN and a molecular weight of 321.94 g/mol, is a halogenated indole derivative. This compound serves as a valuable building block in organic synthesis, particularly for the construction of complex heterocyclic structures. Its specific substitution pattern makes it useful in medicinal chemistry and materials science research.
- IUPAC
- 5-Bromo-7-iodo-1H-indole
- Synonyms
- 5-Bromo-7-iodo-1H-indole

Organic Synthesis Intermediate
5-Bromo-7-iodoindole is employed as a versatile intermediate in multi-step organic syntheses. The presence of two distinct halogen atoms allows for selective functionalisation through various coupling reactions, enabling the construction of complex molecular architectures.
Medicinal Chemistry Research
This indole derivative can be incorporated into potential drug candidates. Its scaffold is relevant for developing novel therapeutic agents targeting various biological pathways, leveraging the unique electronic and steric properties conferred by the bromo and iodo substituents.
Materials Science Applications
The compound's structure lends itself to the development of novel organic materials. It can be used in the synthesis of conjugated systems or functional polymers with specific electronic or optical properties.
| Molecular weight | 321.94 |
|---|---|
| Empirical formula | C8H5BrIN |
| Assay | 97% |
| Melting point | 80-84 °C |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-39 |
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 5-Bromo-7-iodoindole used for?
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5-Bromo-7-iodoindole is primarily used as a versatile building block and intermediate in organic synthesis, particularly in medicinal chemistry research and materials science for the development of complex heterocyclic compounds.
What is the CAS number and molecular formula for 5-Bromo-7-iodoindole?
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The CAS number is 123020-20-2 and the molecular formula is C8H5BrIN.
What grade and purity does Tech Serve Solutions supply for 5-Bromo-7-iodoindole?
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Tech Serve Solutions supplies 5-Bromo-7-iodoindole with a purity of 97% (Assay). We do not represent this product as USP, BP, or EP grade.
How should 5-Bromo-7-iodoindole be handled safely?
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5-Bromo-7-iodoindole is a Danger hazard. It is harmful if swallowed, causes skin irritation, causes serious eye damage, and may cause respiratory irritation. Handle with appropriate personal protective equipment including dust mask type N95, eyeshields, faceshields, and gloves. Ensure good ventilation.
Is 5-Bromo-7-iodoindole available for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 5-Bromo-7-iodoindole.
How can I request a quote or sample for 5-Bromo-7-iodoindole?
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Please contact our sales team via the website or phone to request a quote or sample for 5-Bromo-7-iodoindole.
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