3,5-Dimethyl-4-iodo-1H-pyrazole
3,5-Dimethyl-4-iodo-1H-pyrazole (CAS: 2033-45-6) is a halogenated heterocyclic organic compound with the molecular formula C5H7IN2 and a molecular weight of 222.03 g/mol. It serves as a versatile building block in organic synthesis, particularly in the preparation of more complex molecules. Its structure features a pyrazole ring substituted with two methyl groups and an iodine atom, making it valuable for introducing specific functionalities in chemical research and development.
- Synonyms
- C5H7IN2

Organic Synthesis Intermediate
This compound is employed as a key intermediate in the synthesis of various organic molecules. The presence of the iodine atom allows for facile derivatization through cross-coupling reactions or nucleophilic substitution.
Heterocyclic Chemistry
As a substituted pyrazole, it is a valuable synthon in heterocyclic chemistry research. It can be used to construct novel heterocyclic frameworks with potential applications in medicinal chemistry and material science.
Research and Development
3,5-Dimethyl-4-iodo-1H-pyrazole is utilised in academic and industrial laboratories for the development of new chemical entities and synthetic methodologies. Its specific structure facilitates targeted chemical transformations.
| Molecular weight | 222.03 |
|---|---|
| Empirical formula | C5H7IN2 |
| Assay | 97% |
| Melting point | 136-140 °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 3,5-Dimethyl-4-iodo-1H-pyrazole used for?
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3,5-Dimethyl-4-iodo-1H-pyrazole is primarily used as a building block and intermediate in organic synthesis, particularly in the field of heterocyclic chemistry and for research and development purposes.
What are the CAS number and formula for 3,5-Dimethyl-4-iodo-1H-pyrazole?
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The CAS number for 3,5-Dimethyl-4-iodo-1H-pyrazole is 2033-45-6, and its empirical formula is C5H7IN2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Dimethyl-4-iodo-1H-pyrazole with an assay of 97%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades.
What are the safety and handling precautions for 3,5-Dimethyl-4-iodo-1H-pyrazole?
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This compound is classified under GHS05 and GHS07 with the signal word 'Danger'. It causes skin irritation (H315), serious eye damage (H318), and may cause respiratory irritation (H335). Recommended personal protective equipment includes a dust mask type N95, eyeshields, and gloves. Always handle in a well-ventilated area and avoid dust formation.
How is 3,5-Dimethyl-4-iodo-1H-pyrazole packed, shipped, and exported?
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Tech Serve Solutions offers this chemical in various pack sizes suitable for laboratory and industrial use, adhering to international shipping regulations for chemical exports.
How can I request a sample or quote for 3,5-Dimethyl-4-iodo-1H-pyrazole?
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To request a sample or obtain a quote, please contact our sales department via the website or by phone, specifying the product name and CAS number.
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