3-(3,5-Difluorophenyl)propionic acid
3-(3,5-Difluorophenyl)propionic acid (CAS: 84315-24-2), also known as 3,5-Difluorohydrocinnamic acid, is a fluorinated organic building block with the molecular formula C9H8F2O2 and a molecular weight of 186.16 g/mol. This compound is primarily utilised in chemical synthesis, serving as a key intermediate in the development of novel organic molecules. Its difluorophenyl moiety makes it valuable for introducing fluorine atoms into target structures, a common strategy in medicinal chemistry and materials science.
- IUPAC
- 3,5-Difluorohydrocinnamic acid,3-(3,5-Difluorophenyl)propanoic acid
- Synonyms
- 3,5-Difluorohydrocinnamic acid3-(3,5-Difluorophenyl)propanoic acid

Pharmaceutical Intermediate
Serves as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs). The presence of fluorine atoms can modulate pharmacokinetic properties such as metabolic stability and lipophilicity.
Agrochemical Research
Used in the development of new pesticides and herbicides. Fluorinated compounds often exhibit enhanced biological activity and environmental persistence profiles.
Materials Science
Applicable in the synthesis of fluorinated polymers and specialty materials. The incorporation of fluorine can impart unique thermal, chemical, and electrical properties.
Organic Synthesis
A versatile reagent for introducing the 3,5-difluorophenylpropionic acid moiety into complex organic molecules. It is a valuable tool for synthetic chemists exploring structure-activity relationships.
| Molecular weight | 186.16 |
|---|---|
| Empirical formula | C9H8F2O2 |
| Assay | 97% |
| Melting point | 59-61 °C |


Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- 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) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 21-37/38-41 |
| Safety statements (S) | 26-39 |
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-(3,5-Difluorophenyl)propionic acid used for?
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3-(3,5-Difluorophenyl)propionic acid is primarily used as a building block in organic synthesis, particularly in the pharmaceutical and agrochemical industries for the development of new active compounds.
What is the CAS number and formula for 3-(3,5-Difluorophenyl)propionic acid?
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The CAS number is 84315-24-2 and the empirical formula is C9H8F2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 97%. We do not represent it as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated in the product data.
How should 3-(3,5-Difluorophenyl)propionic acid be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (N95 recommended), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. This compound is classified as harmful if swallowed or inhaled and causes skin and eye irritation. Refer to the Safety Data Sheet for detailed handling instructions.
How is this product shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. Packaging and shipping methods comply with international regulations for hazardous materials.
How can I request a sample or quote?
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Please contact our sales team directly via the website or phone to request a sample or a formal quotation for 3-(3,5-Difluorophenyl)propionic acid.
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