2,3-Difluorobenzoic acid
2,3-Difluorobenzoic acid (CAS 4519-39-5), with the molecular formula F2C6H3CO2H and a molecular weight of 158.10 g/mol, is a specialised fluorinated organic building block. This aryl carboxylic acid is primarily recognised for its utility in chemical synthesis. A notable application includes its use as a tracer in geological and industrial studies, particularly for determining material recovery in oil wells. Available from Tech Serve Solutions with an assay of 98%, it serves as a valuable reagent for research and development.
- Synonyms
- F2C6H3CO2H

tracer in oil well analysis
2,3-Difluorobenzoic acid has been documented for use as a tracer substance. Its application aids in monitoring and determining the extent of material recovery following injection into oil wells.
Organic Synthesis Intermediate
As a difluorinated benzoic acid derivative, this compound functions as a key building block in organic synthesis. Its structure allows for further functionalisation in the preparation of complex molecules.
Fluorinated Building Block
This chemical is a valuable component within the realm of fluorinated organic building blocks, essential for creating novel compounds with tailored properties in various research fields.
| Molecular weight | 158.10 |
|---|---|
| Linear formula | F2C6H3CO2H |
| Assay | 98% |
| Application | 2,3-Difluorobenzoic acid has been used as a tracer for determining the extent of recovery of materials injected into oil wells1. |
| Melting point | 163-165 °C(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 | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 2,3-Difluorobenzoic acid used for?
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2,3-Difluorobenzoic acid (CAS 4519-39-5) is primarily used as a tracer substance, particularly for determining material recovery in oil wells, and as a building block in organic synthesis.
What are the CAS number and chemical formula for 2,3-Difluorobenzoic acid?
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The CAS number is 4519-39-5, and its linear formula is F2C6H3CO2H.
What grade and purity does Tech Serve Solutions supply for 2,3-Difluorobenzoic acid?
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Tech Serve Solutions supplies 2,3-Difluorobenzoic acid with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 2,3-Difluorobenzoic acid be handled safely?
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Handle with appropriate personal protective equipment including a dust mask (type N95 or equivalent), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. The compound is classified with warning signal word and hazards including skin irritation (H315), eye irritation (H319), and respiratory irritation (H335).
Is 2,3-Difluorobenzoic acid available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 2,3-Difluorobenzoic acid.
How can I request a sample or quote for 2,3-Difluorobenzoic acid?
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Please contact our sales department to request a sample or a quote for 2,3-Difluorobenzoic acid. Details can be found on our contact page.
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