3-Chloro-5-fluoro-4-hydroxybenzaldehyde
3-Chloro-5-fluoro-4-hydroxybenzaldehyde (CAS: 870704-13-5) is an organic compound with the molecular formula HOC6H2(Cl)(F)CHO and a molecular weight of 174.56 g/mol. This fluorinated aryl aldehyde serves as a valuable building block in organic synthesis. Its unique structure, featuring chlorine, fluorine, hydroxyl, and aldehyde functionalities, makes it suitable for developing complex molecules. It is primarily utilised in chemical research and the synthesis of advanced intermediates.

Pharmaceutical Intermediate Synthesis
This compound is employed as a key intermediate in the synthesis of novel pharmaceutical candidates. Its reactive aldehyde group and halogen substituents allow for diverse chemical transformations.
Agrochemical Development
The fluorinated aromatic structure makes it a potential building block for developing new agrochemicals with specific biological activities.
Materials Science Research
As a functionalised organic molecule, it can be investigated for applications in the development of novel materials and polymers.
Organic Synthesis Reagent
Its well-defined structure and reactivity make it a useful reagent for academic and industrial research in advanced organic synthesis methodologies.
| Molecular weight | 174.56 |
|---|---|
| Linear formula | HOC6H2(Cl)(F)CHO |
| Assay | 97% |
| Melting point | 134-138 °C(lit.) |


Hazard statements
- H301Toxic if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-41 |
| Safety statements (S) | 26-39-45 |
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-Chloro-5-fluoro-4-hydroxybenzaldehyde used for?
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3-Chloro-5-fluoro-4-hydroxybenzaldehyde (CAS: 870704-13-5) is used as a building block in organic synthesis, particularly for pharmaceuticals, agrochemicals, and materials science.
What are the CAS number and formula for this compound?
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The CAS number is 870704-13-5 and the molecular formula is HOC6H2(Cl)(F)CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Chloro-5-fluoro-4-hydroxybenzaldehyde with an assay of 97%. This is a research-grade chemical and is not represented as USP, BP, EP, or any other pharmacopoeia standard.
What are the safety considerations when handling 3-Chloro-5-fluoro-4-hydroxybenzaldehyde?
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This compound is classified as dangerous. It is toxic if swallowed (H301) and causes serious eye damage (H318). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, face shield, and gloves, must be worn. Handle with extreme care in a well-ventilated area.
How is this chemical shipped and exported?
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Tech Serve Solutions exports chemicals globally, adhering to all relevant shipping regulations. This product is classified under UN 2811, Hazard Class 6.1, Packing Group III.
How can I request a quote or sample?
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To request a quote or a sample of 3-Chloro-5-fluoro-4-hydroxybenzaldehyde, please contact our sales department through the website or by phone.
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