4-Amino-2,3,5,6-tetrafluoropyridine
4-Amino-2,3,5,6-tetrafluoropyridine (CAS: 1682-20-8; Formula: C5H2F4N2) is a fluorinated heterocyclic compound supplied by Tech Serve Solutions. With a molecular weight of 166.08 g/mol, it serves as a valuable building block in organic synthesis. Its specific structure makes it useful in the development of novel compounds, particularly within pharmaceutical and agrochemical research sectors requiring fluorinated pyridine moieties.
- Synonyms
- 4-amino-2,3,5,6-tetrafluoropyridine6-tetrafluoropyridine1682-20-8C5H2F4N2

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of complex organic molecules. Its tetrafluorinated pyridine core allows for diverse derivatisation pathways in research and development.
Pharmaceutical Research
A crucial building block for medicinal chemistry programmes. It can be incorporated into potential drug candidates to modulate pharmacokinetic and pharmacodynamic properties.
Agrochemical Development
Employed in the design and synthesis of new agrochemical agents. The incorporation of fluorine atoms can enhance the efficacy and metabolic stability of pesticides and herbicides.
Materials Science
Serves as a precursor for functional materials. The unique electronic properties imparted by the fluorinated pyridine ring can be exploited in the development of advanced materials.
| Molecular weight | 166.08 |
|---|---|
| Empirical formula | C5H2F4N2 |
| Assay | 98% |
| Melting point | 85-87 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- 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) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-36 |
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-Amino-2,3,5,6-tetrafluoropyridine used for?
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4-Amino-2,3,5,6-tetrafluoropyridine is primarily used as a building block in organic synthesis, particularly for research and development in the pharmaceutical, agrochemical, and materials science sectors.
What are the CAS number and formula for 4-Amino-2,3,5,6-tetrafluoropyridine?
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The CAS number is 1682-20-8 and the empirical formula is C5H2F4N2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Amino-2,3,5,6-tetrafluoropyridine with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
How should 4-Amino-2,3,5,6-tetrafluoropyridine be handled?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Avoid breathing dust. Wash hands thoroughly after handling. This compound is classified with GHS07 symbol and a Warning signal word, with hazard statements including H302, H312, H315, H319, H332, and H335.
Is 4-Amino-2,3,5,6-tetrafluoropyridine a controlled substance?
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The provided data does not indicate that 4-Amino-2,3,5,6-tetrafluoropyridine is a controlled substance.
How is this chemical shipped or exported by TSS?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, and we adhere to all regulations for the safe and compliant shipping and exporting of chemical products.
How can I request a sample or quote for 4-Amino-2,3,5,6-tetrafluoropyridine?
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Please contact our sales team via the website or direct email to request a sample or obtain a quotation for 4-Amino-2,3,5,6-tetrafluoropyridine.
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