4-(4-Fluorophenoxy)benzaldehyde
4-(4-Fluorophenoxy)benzaldehyde (CAS: 137736-06-2), with the molecular formula FC6H4OC6H4CHO and a molecular weight of 216.21 g/mol, is a key fluorinated aromatic aldehyde. This compound serves as a valuable building block in organic synthesis. It is particularly useful in the preparation of more complex molecules for research and development purposes, notably within the pharmaceutical and materials science sectors, owing to the presence of both aldehyde and fluorophenoxy functionalities.

Organic Synthesis Intermediate
This compound functions as a versatile intermediate in multi-step organic syntheses. Its aldehyde group readily participates in reactions like Wittig, Grignard, and reductive amination, while the fluorophenoxy moiety introduces specific electronic and lipophilic properties into target molecules.
Pharmaceutical Research and Development
As a fluorinated aryl building block, it is employed in the synthesis of novel drug candidates. Fluorine substitution can significantly impact a molecule's metabolic stability, binding affinity, and bioavailability.
Materials Science
The unique structural features of 4-(4-Fluorophenoxy)benzaldehyde make it a potential precursor for the development of advanced materials, including polymers and liquid crystals where specific electronic or optical properties are desired.
| Molecular weight | 216.21 |
|---|---|
| Linear formula | FC6H4OC6H4CHO |
| Assay | 97% |
| Melting point | 76-80 °C |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 22-41-51/53 |
| Safety statements (S) | 26-36/39-60-61 |
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-(4-Fluorophenoxy)benzaldehyde used for?
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4-(4-Fluorophenoxy)benzaldehyde is primarily used as a building block and intermediate in organic synthesis, particularly in pharmaceutical research and development and materials science.
What are the CAS number and chemical formula for 4-(4-Fluorophenoxy)benzaldehyde?
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The CAS number is 137736-06-2 and the chemical formula is FC6H4OC6H4CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-(4-Fluorophenoxy)benzaldehyde with an assay of 97%. This product is intended for research and laboratory use, and TSS does not represent it as USP, BP, EP, or any other pharmacopoeial grade.
What are the main safety concerns when handling 4-(4-Fluorophenoxy)benzaldehyde?
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4-(4-Fluorophenoxy)benzaldehyde is classified as Danger. It is harmful if swallowed (H302) and causes serious eye damage (H318). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, must be worn. Handle in a well-ventilated area.
How is this chemical packed, shipped, and exported?
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This chemical is packed in compliance with relevant regulations for hazardous materials and is exported globally by TSS, a specialist supplier since 1998. Specific packaging details will be provided upon inquiry.
How can I request a quote or sample of 4-(4-Fluorophenoxy)benzaldehyde?
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To request a quote or sample, please use the contact form on our website or call our sales department, referencing product CAS number 137736-06-2.
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