3-Fluoro-4-methylbenzaldehyde
3-Fluoro-4-methylbenzaldehyde (CAS: 177756-62-6), with the molecular formula FC6H3(CH3)CHO and a molecular weight of 138.14 g/mol, is a fluorinated aromatic aldehyde. This compound serves as a valuable intermediate and building block in organic synthesis. Its structure, featuring both a fluorine atom and an aldehyde group on a methyl-substituted benzene ring, allows for diverse chemical transformations. It is commonly employed in the research and development of pharmaceuticals and agrochemicals.

Pharmaceutical Intermediates
This fluorinated benzaldehyde derivative is utilised in the synthesis pathways for various active pharmaceutical ingredients (APIs). Its specific structural features can be incorporated into complex drug molecules to modulate their biological activity and pharmacokinetic properties.
Agrochemical Synthesis
The compound finds application as a building block in the development of novel pesticides, herbicides, and fungicides. Fluorine incorporation is a common strategy in agrochemical design to enhance efficacy and stability.
Organic Synthesis Research
As a versatile fluorinated organic building block, it is employed in academic and industrial research laboratories for exploring new synthetic methodologies and creating novel chemical entities.
| Molecular weight | 138.14 |
|---|---|
| Linear formula | FC6H3(CH3)CHO |
| Assay | 98% |
| Boiling point | 206 °C(lit.) |
| Density | 1.133 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5245(lit.) |

Hazard statements
- 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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 82 °C / 179.6 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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-Fluoro-4-methylbenzaldehyde used for?
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3-Fluoro-4-methylbenzaldehyde is primarily used as a building block and intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals.
What is the CAS number and chemical formula for 3-Fluoro-4-methylbenzaldehyde?
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The CAS number is 177756-62-6, and the chemical formula is FC6H3(CH3)CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Fluoro-4-methylbenzaldehyde with an assay of 98%. This product is suitable for research and general chemical synthesis purposes and is not supplied as USP, BP, EP, or any other pharmacopoeial grade.
How should 3-Fluoro-4-methylbenzaldehyde be handled safely?
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Handle with care to avoid skin and eye contact, and inhalation of vapours. It is classified as a Warning, with hazards including skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Always use appropriate personal protective equipment, such as gloves, safety glasses, and a respirator with an ABEK filter, in a well-ventilated area.
How is 3-Fluoro-4-methylbenzaldehyde packed and exported?
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Tech Serve Solutions packages and exports 3-Fluoro-4-methylbenzaldehyde adhering to international shipping regulations for chemical compounds. Further details on specific packaging for export can be provided upon request.
How can I request a quote or sample for 3-Fluoro-4-methylbenzaldehyde?
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To request a quote or a sample of 3-Fluoro-4-methylbenzaldehyde, please contact our sales team via the website or by direct enquiry, providing your specific requirements.
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