3-Bromo-(1-phenylsulfonyl)indole
3-Bromo-(1-phenylsulfonyl)indole (CAS 99655-68-2) is a specialised chemical intermediate with the molecular formula C14H10BrNO2S and a molecular weight of 336.20 g/mol. This halogenated heterocyclic compound serves as a valuable building block in organic synthesis. Its structure, featuring a phenylsulfonyl group and a bromine atom on the indole core, allows for diverse chemical transformations, making it useful in the development of complex molecules for research and industrial applications.
- IUPAC
- 1-Benzenesulfonyl-3-bromo-1H-indole
- Synonyms
- 1-Benzenesulfonyl-3-bromo-1H-indole

Organic Synthesis Intermediate
3-Bromo-(1-phenylsulfonyl)indole is employed as a key building block in multi-step organic synthesis pathways. The presence of the reactive bromine atom and the sulfonyl group facilitates various coupling and functionalisation reactions.
Heterocyclic Chemistry Research
This compound is utilised in academic and industrial research settings for exploring novel indole derivatives. It contributes to the synthesis of complex heterocyclic structures with potential biological or material science applications.
Pharmaceutical Intermediate Development
The indole scaffold is prevalent in many pharmaceuticals, and this brominated derivative can serve as a precursor for developing new active pharmaceutical ingredients (APIs) or their analogues.
| Molecular weight | 336.20 |
|---|---|
| Empirical formula | C14H10BrNO2S |
| Assay | 95% |
| Melting point | 122-126 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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-(1-phenylsulfonyl)indole used for?
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3-Bromo-(1-phenylsulfonyl)indole is primarily used as a building block in organic synthesis, particularly in the creation of complex heterocyclic compounds and potentially as an intermediate in pharmaceutical research and development.
What are the CAS number and formula for 3-Bromo-(1-phenylsulfonyl)indole?
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The CAS number for 3-Bromo-(1-phenylsulfonyl)indole is 99655-68-2, and its empirical formula is C14H10BrNO2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Bromo-(1-phenylsulfonyl)indole with a minimum assay of 95%. This is a technical grade suitable for research and chemical synthesis; TSS does not represent it as USP, BP, or EP grade.
How should 3-Bromo-(1-phenylsulfonyl)indole be handled?
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This compound is classified as harmful if swallowed (H302) and requires appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, faceshields, and gloves. Handle in a well-ventilated area.
Is this chemical suitable for export?
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Yes, Tech Serve Solutions specialises in the global supply and export of fine chemicals like 3-Bromo-(1-phenylsulfonyl)indole to researchers and industries worldwide.
How can I request a sample or quote?
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To request a sample or a quotation for 3-Bromo-(1-phenylsulfonyl)indole, please contact our sales team through the website or by email, providing your specific requirements.
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