3,7-Dibromochromone
3,7-Dibromochromone (CAS: 1159978-70-7) is a halogenated heterocyclic organic compound with the molecular formula C9H4Br2O2. Possessing a molecular weight of 303.93 g/mol, this compound serves as a valuable building block in chemical synthesis. Its structure, featuring bromine atoms on a chromone core, makes it suitable for diverse organic transformations and the development of novel chemical entities in research and development settings.
- IUPAC
- 3,7-Dibromo-4H-benzopyran-4-one,3,7-Dibromo-4H-chromen-4-one
- Synonyms
- C9H4Br2O23,7-Dibromo-4H-benzopyran-4-one3,7-Dibromo-4H-chromen-4-one

Organic Synthesis Intermediate
3,7-Dibromochromone acts as a key intermediate in the synthesis of more complex organic molecules. The presence of two bromine atoms allows for selective functionalization and cross-coupling reactions, facilitating the construction of diverse molecular architectures.
Heterocyclic Chemistry Research
This compound is utilised in academic and industrial research laboratories exploring novel heterocyclic systems. Its specific substitution pattern on the chromone framework offers unique reactivity for developing new chemical entities.
Building Block for Fine Chemicals
As a versatile building block, 3,7-Dibromochromone finds application in the preparation of fine chemicals. It can be employed in multi-step syntheses where the dibrominated chromone moiety is a crucial structural element.
| Molecular weight | 303.93 |
|---|---|
| Empirical formula | C9H4Br2O2 |
| Melting point | 140-146 °C |

Hazard statements
- H301Toxic if swallowed
Precautionary statements
- P301IF SWALLOWED
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25 |
| Safety statements (S) | 45 |
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 3,7-Dibromochromone used for?
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3,7-Dibromochromone is primarily used as a building block in organic synthesis and for research in heterocyclic chemistry. It is an intermediate for creating more complex organic molecules.
What is the CAS number and formula for 3,7-Dibromochromone?
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The CAS number for 3,7-Dibromochromone is 1159978-70-7, and its empirical formula is C9H4Br2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,7-Dibromochromone as a research chemical. The purity is typically verified by analytical methods, and TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 3,7-Dibromochromone be handled safely?
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3,7-Dibromochromone is classified as toxic if swallowed (H301) and requires careful handling. Always use appropriate personal protective equipment (PPE), work in a well-ventilated area or fume hood, and follow all safety protocols as indicated by the Safety Data Sheet (SDS).
Is 3,7-Dibromochromone a controlled substance?
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The provided data does not indicate that 3,7-Dibromochromone is a controlled substance.
How is 3,7-Dibromochromone packed and shipped?
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3,7-Dibromochromone is packed according to international shipping regulations for hazardous materials, including UN 2811 classification. Tech Serve Solutions is experienced in exporting chemicals globally.
How can I request a sample or quote for 3,7-Dibromochromone?
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To request a sample or a quote for 3,7-Dibromochromone, please contact the Tech Serve Solutions sales team directly through our website or by phone.
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