1-Benzyl-4-iodo-1H-pyrazole
1-Benzyl-4-iodo-1H-pyrazole (CAS: 50877-42-4) is a halogenated heterocyclic building block with the molecular formula C10H9IN2 and a molecular weight of 284.10 g/mol. It serves as a key intermediate in organic synthesis, particularly for the construction of more complex pyrazole derivatives. Its structure, featuring an iodine atom, allows for diverse coupling reactions and further functionalisation, making it valuable in research and development across various chemical sectors.

Organic Synthesis Intermediate
Utilised as a versatile building block for the synthesis of complex organic molecules. The reactive iodine atom facilitates cross-coupling reactions such as Suzuki, Sonogashira, and Heck couplings, enabling the introduction of various substituents onto the pyrazole core.
Pharmaceutical Research
A valuable intermediate in the development of novel pharmaceutical agents. Pyrazole derivatives are known to possess a wide range of biological activities, making this compound a potential starting material for drug discovery programmes.
Materials Science
Can be employed in the synthesis of functional materials. The incorporation of the pyrazole moiety and potential for further derivatisation can lead to novel compounds with interesting electronic or optical properties.
| Molecular weight | 284.10 |
|---|---|
| Empirical formula | C10H9IN2 |
| Assay | 97% |
| Melting point | 62-66 °C |


Hazard statements
- H315Causes skin irritation
- H318Causes serious eye damage
- 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) | Xi |
| Risk statements (R) | 37/38-41 |
| Safety statements (S) | 26-39 |
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 1-Benzyl-4-iodo-1H-pyrazole used for?
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1-Benzyl-4-iodo-1H-pyrazole (CAS: 50877-42-4) is primarily used as a building block in organic synthesis, especially for constructing more complex pyrazole derivatives and in pharmaceutical research.
What are the CAS number and molecular formula for 1-Benzyl-4-iodo-1H-pyrazole?
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The CAS number is 50877-42-4, and the molecular formula is C10H9IN2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Benzyl-4-iodo-1H-pyrazole with a minimum assay of 97%. This product is supplied for research and development use and is not represented as USP, BP, EP, or other pharmacopoeia grades.
How should 1-Benzyl-4-iodo-1H-pyrazole be handled?
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1-Benzyl-4-iodo-1H-pyrazole is classified as corrosive and an irritant. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (type N95 US recommended). Avoid contact with skin, eyes, and inhalation of dust. Ensure adequate ventilation.
Is this chemical exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 1-Benzyl-4-iodo-1H-pyrazole.
How can I request a quote or sample?
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To request a quote or sample of 1-Benzyl-4-iodo-1H-pyrazole, please contact our sales team via the website or by phone, providing your specific requirements.
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