3-Iodopyridine
3-Iodopyridine (CAS: 1120-90-7), a halogenated heterocyclic compound with the molecular formula C5H4IN, is a valuable building block in organic synthesis. Its structure, featuring an iodine atom substituted onto the pyridine ring, allows for diverse chemical transformations. This compound is primarily utilised in research and development settings, particularly in the synthesis of complex organic molecules and as an intermediate in the production of pharmaceuticals and agrochemicals.

Organic Synthesis Intermediate
3-Iodopyridine serves as a key intermediate in various cross-coupling reactions, such as Suzuki and Sonogashira couplings, enabling the formation of carbon-carbon bonds. It is widely employed in the construction of more complex heterocyclic frameworks.
Pharmaceutical Research
This compound is used in the development of novel pharmaceutical agents. Its pyridine core and reactive iodine substituent make it a useful starting material for synthesising drug candidates with potential therapeutic applications.
Agrochemical Development
3-Iodopyridine can be incorporated into the synthesis pathways for new agrochemicals, contributing to the development of pesticides and herbicides. The introduction of the iodopyridine moiety can influence the biological activity of the target molecule.
Material Science
In material science, derivatives of 3-iodopyridine may be explored for their electronic or optical properties, finding potential use in organic electronic devices or functional materials.
| Molecular weight | 205.00 |
|---|---|
| Empirical formula | C5H4IN |
| Assay | 98% |
| Melting point | 53-56 °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 |
|---|---|
| Flash point | 106 °C / 222.8 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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 3-Iodopyridine used for?
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3-Iodopyridine is primarily used as a building block and intermediate in organic synthesis, particularly in pharmaceutical research, agrochemical development, and material science for constructing complex molecules.
What are the CAS number and formula for 3-Iodopyridine?
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The CAS number for 3-Iodopyridine is 1120-90-7, and its molecular formula is C5H4IN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Iodopyridine with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should 3-Iodopyridine be handled safely?
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Handle 3-Iodopyridine with appropriate personal protective equipment, including a dust mask (N95 US type), eyeshields, and gloves. Ensure adequate ventilation to avoid inhalation of dust. Avoid contact with skin and eyes. This compound is classified as a warning substance and is known to cause skin irritation, eye irritation, and respiratory irritation (H315-H319-H335).
Is 3-Iodopyridine a controlled substance?
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The provided data does not indicate that 3-Iodopyridine is a controlled substance.
How is 3-Iodopyridine packaged and shipped?
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3-Iodopyridine is carefully packaged to ensure safe transit and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a quote or sample for 3-Iodopyridine?
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To request a quote or a sample of 3-Iodopyridine, please contact our sales team through the website or by calling us directly.
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