2,2-Difluoro-1,3-benzodioxole-4-carboxylic acid
2,2-Difluoro-1,3-benzodioxole-4-carboxylic acid (CAS: 126120-85-2) is a fluorinated heterocyclic organic compound with the molecular formula C8H4F2O4 and a molecular weight of 202.11 g/mol. Possessing a carboxylic acid functional group, it serves as a valuable building block in organic synthesis. Its difluorinated benzodioxole core makes it particularly useful in the development of novel materials and active pharmaceutical ingredients where enhanced stability or specific electronic properties are desired.
- Synonyms
- 126120-85-2C8H4F2O4

Pharmaceutical Intermediate
This compound is utilized as a key intermediate in the synthesis of various pharmaceutical agents. Its fluorinated structure can impart unique pharmacokinetic and pharmacodynamic properties to drug candidates.
Organic Synthesis Reagent
As a functionalized building block, it enables the introduction of the difluorobenzodioxole moiety into complex organic molecules. It is employed in research and development for creating novel chemical entities.
Materials Science
The presence of fluorine atoms and the rigid heterocyclic structure can be advantageous in the design of advanced materials, potentially influencing properties such as thermal stability and electronic characteristics.
| Molecular weight | 202.11 |
|---|---|
| Empirical formula | C8H4F2O4 |
| Assay | 97% |
| Melting point | 200-204 °C |



Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
- H400Very toxic to aquatic life
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Transport (UN / ADR) | UN 3077 9 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 22-41-50 |
| Safety statements (S) | 26-39-61 |
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 2,2-Difluoro-1,3-benzodioxole-4-carboxylic acid used for?
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This compound is primarily used as a building block in organic synthesis, particularly in the development of pharmaceuticals and advanced materials, due to its unique fluorinated heterocyclic structure.
What are the CAS number and formula for this chemical?
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The CAS number is 126120-85-2 and the empirical formula is C8H4F2O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 97%. It is supplied as a technical/research grade material and TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling considerations for this compound?
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This compound is classified as Dangerous. It can cause severe eye damage (H318) and is harmful if swallowed (H302). It is also very toxic to aquatic life with long-lasting effects (H400). Handle with appropriate personal protective equipment (P280) and avoid release to the environment (P273).
Is this product packed and shipped internationally?
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Yes, Tech Serve Solutions, as a specialist global supplier and exporter, offers international shipping for this product, adhering to all necessary regulations for dangerous goods transport (UN 3077).
How can I request a sample or a quote?
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To request a sample or obtain a quote, please contact our sales department directly through our website or by phone, providing the product name and CAS number (126120-85-2).
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