3-Bromo-4-fluorobenzaldehyde
3-Bromo-4-fluorobenzaldehyde (CAS: 77771-02-9), with the chemical formula BrC6H3(F)CHO and a molecular weight of 203.01 g/mol, is a valuable halogenated aromatic aldehyde. It serves as a key intermediate and building block in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals. Its reactive aldehyde group and strategically placed bromine and fluorine atoms allow for diverse chemical transformations, enabling the construction of complex molecular architectures.

Pharmaceutical Intermediate
This compound is frequently employed in the synthesis of active pharmaceutical ingredients (APIs). The presence of both bromine and fluorine offers unique reactivity for medicinal chemistry programs aimed at developing novel therapeutics.
Agrochemical Synthesis
3-Bromo-4-fluorobenzaldehyde is utilised as a building block in the creation of new agrochemicals. Its structure can be incorporated into molecules designed for crop protection and pest management.
Organic Building Block
As a versatile organic building block, it facilitates the synthesis of various complex organic molecules. Researchers and chemists use it to introduce specific structural motifs in multi-step synthetic routes.
Material Science
The unique electronic properties conferred by the halogen substituents make this compound of interest in material science research for developing novel functional materials.
| Molecular weight | 203.01 |
|---|---|
| Linear formula | BrC6H3(F)CHO |
| Assay | 98% |
| Boiling point | 138-139 °C/2.5 mmHg(lit.) |
| Melting point | 31-33 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- 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 |
|---|---|
| Flash point | >113 °C / >235.4 °F |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| 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 3-Bromo-4-fluorobenzaldehyde used for?
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3-Bromo-4-fluorobenzaldehyde is primarily used as an intermediate and building block in organic synthesis, particularly for the development of pharmaceuticals, agrochemicals, and potentially in material science research.
What is the CAS number and chemical formula for 3-Bromo-4-fluorobenzaldehyde?
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The CAS number is 77771-02-9, and the chemical formula is BrC6H3(F)CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Bromo-4-fluorobenzaldehyde with an assay of 98%. This product is not supplied as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated otherwise, and TSS does not represent it as such.
What are the primary safety hazards associated with 3-Bromo-4-fluorobenzaldehyde?
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According to GHS classification, 3-Bromo-4-fluorobenzaldehyde is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used when handling. Store in a well-ventilated area.
Is 3-Bromo-4-fluorobenzaldehyde available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 3-Bromo-4-fluorobenzaldehyde. We handle international shipping and export requirements.
How can I request a quote or sample for 3-Bromo-4-fluorobenzaldehyde?
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To request a quote or a sample of 3-Bromo-4-fluorobenzaldehyde, please contact our sales team through the website or by phone, providing your specific requirements and shipping details.
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