4-Fluoro-3-methoxybenzaldehyde
4-Fluoro-3-methoxybenzaldehyde (CAS: 128495-46-5) is a fluorinated aromatic aldehyde with the molecular formula FC6H3(OCH3)CHO and a molecular weight of 154.14 g/mol. This chemical compound serves as a valuable building block in organic synthesis. Its structure, featuring both a fluorine atom and an aldehyde group on a methoxy-substituted benzene ring, allows for diverse chemical transformations, making it useful in the development of complex organic molecules and intermediates for various industries.

Organic Synthesis Intermediate
Utilised as a key building block in multi-step organic syntheses. Its functional groups facilitate derivatisation for constructing more complex molecular architectures.
Pharmaceutical Research
A crucial component in the synthesis pathways for novel pharmaceutical agents. The fluorinated aromatic moiety is often incorporated to modulate pharmacokinetic properties.
Agrochemical Development
Employed in the research and development of new agrochemicals, where fluorinated compounds can impart desirable biological activity and stability.
Material Science
Investigated for potential applications in the development of advanced materials, owing to the unique electronic and physical properties conferred by the fluoro-aromatic structure.
| Molecular weight | 154.14 |
|---|---|
| Linear formula | FC6H3(OCH3)CHO |
| Assay | 97% |
| Melting point | 58-62 °C(lit.) |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
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, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| 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 4-Fluoro-3-methoxybenzaldehyde used for?
+
4-Fluoro-3-methoxybenzaldehyde is primarily used as a versatile building block in organic synthesis, particularly in the development of pharmaceuticals, agrochemicals, and potentially new materials.
What is the CAS number and chemical formula for 4-Fluoro-3-methoxybenzaldehyde?
+
The CAS number is 128495-46-5, and the chemical formula is FC6H3(OCH3)CHO.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4-Fluoro-3-methoxybenzaldehyde with an assay of 97%. TSS does not represent this product as USP, BP, or EP grade.
How should 4-Fluoro-3-methoxybenzaldehyde be handled safely?
+
Handle with appropriate personal protective equipment including a dust mask (N95), eyeshields, and gloves. It is labelled with Danger, causing skin irritation, serious eye damage, and respiratory irritation. Avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
Is 4-Fluoro-3-methoxybenzaldehyde a controlled substance?
+
The provided data does not indicate that 4-Fluoro-3-methoxybenzaldehyde is a controlled substance.
How is 4-Fluoro-3-methoxybenzaldehyde packed and shipped?
+
Products are carefully packed according to safety regulations for chemical transport and exported globally by Tech Serve Solutions.
How can I request a quote or sample for 4-Fluoro-3-methoxybenzaldehyde?
+
Please contact our sales team via the website or email to request a quote or a sample of 4-Fluoro-3-methoxybenzaldehyde.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis