4-Fluorophthalonitrile
4-Fluorophthalonitrile (CAS 65610-14-2), with the molecular formula C8H3FN2 and a molecular weight of 146.12 g/mol, is a key fluorinated aromatic building block. This compound is essential in organic synthesis, particularly for the construction of complex molecules. It is widely utilised in the development of advanced materials and as an intermediate in the pharmaceutical and agrochemical industries, owing to the unique properties imparted by the fluorine atom and nitrile groups.

Organic Synthesis Intermediate
4-Fluorophthalonitrile serves as a versatile intermediate in the synthesis of various organic compounds. Its difunctional nature allows for diverse chemical transformations, making it valuable in creating complex molecular architectures.
Pharmaceutical Research
This compound is employed in the research and development of novel pharmaceutical agents. The presence of fluorine can significantly influence the pharmacokinetic and pharmacodynamic properties of drug candidates.
Materials Science
It is utilised in the development of advanced materials, including polymers and specialised dyes. The fluorinated aromatic structure can confer desirable properties such as thermal stability and unique electronic characteristics.
Agrochemical Development
4-Fluorophthalonitrile finds application as a building block in the synthesis of agrochemicals. It can contribute to the efficacy and properties of pesticides, herbicides, and fungicides.
| Molecular weight | 146.12 |
|---|---|
| Empirical formula | C8H3FN2 |
| Assay | ≥99.0% |
| Melting point | 100-104 °C |

Hazard statements
- H300Fatal if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P264Wash thoroughly after handling
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T+ |
| Risk statements (R) | 28 |
| Safety statements (S) | 28-36/37-45 |
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 4-Fluorophthalonitrile primarily used for?
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4-Fluorophthalonitrile is primarily used as a versatile building block in organic synthesis, particularly for developing pharmaceuticals, agrochemicals, and advanced materials due to the influence of its fluorine and nitrile functionalities.
What are the CAS number and molecular formula for 4-Fluorophthalonitrile?
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The CAS number for 4-Fluorophthalonitrile is 65610-14-2, and its molecular formula is C8H3FN2.
What grade and purity does Tech Serve Solutions supply for 4-Fluorophthalonitrile?
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Tech Serve Solutions supplies 4-Fluorophthalonitrile with a purity of ≥99.0%. This product is intended for research and chemical synthesis purposes and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
What are the main safety hazards associated with 4-Fluorophthalonitrile?
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4-Fluorophthalonitrile is classified as Danger with hazards including acute toxicity (oral) and serious eye irritation (H300-H319). Strict adherence to safety protocols, including appropriate personal protective equipment like eyeshields, gloves, and respiratory protection, is essential during handling.
How is 4-Fluorophthalonitrile packed, shipped, and exported by TSS?
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4-Fluorophthalonitrile is packed, shipped, and exported in compliance with all relevant transportation regulations, including ADR/RID/IMDG/IATA guidelines. It is classified under UN 2811 (Toxic solid, organic, n.o.s.) with Packing Group II.
How can I request a sample or a quote for 4-Fluorophthalonitrile?
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To request a sample or a quotation for 4-Fluorophthalonitrile, please contact our sales team through the website or by phone, providing your specific requirements.
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