3-Amino-1-methyl-1H-pyrazole hydrochloride
3-Amino-1-methyl-1H-pyrazole hydrochloride (CAS: 127107-29-3), a heterocyclic compound with the molecular formula C4H7N3·HCl and a molecular weight of 133.58 g/mol, serves as a valuable building block in organic synthesis. It is particularly useful in the construction of more complex molecular architectures within pharmaceutical research and chemical development. Its reactivity profile makes it a key intermediate for creating novel compounds with potential biological activity. TSS supplies this chemical with an assay of 97%.
- IUPAC
- 1-Methyl-1H-pyrazol-3-amine hydrochloride

Pharmaceutical Intermediate
This pyrazole derivative is employed as a crucial intermediate in the synthesis of active pharmaceutical ingredients (APIs). Its structure allows for further functionalization to create drug candidates targeting various therapeutic areas.
Heterocyclic Compound Synthesis
As a heterocyclic building block, it is utilised in the construction of diverse nitrogen-containing ring systems. These systems are frequently found in biologically active molecules and advanced materials.
Research and Development
It is used in academic and industrial research laboratories for the exploration of new synthetic methodologies and the development of novel chemical entities. Its availability supports early-stage R&D projects.
| Molecular weight | 133.58 |
|---|---|
| Empirical formula | C4H7N3·HCl |
| Assay | 97% |
| Storage temperature | 2-8°C |
| Melting point | 203-208 °C (decomposition) |

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
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| Safety statements (S) | 26 |
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-Amino-1-methyl-1H-pyrazole hydrochloride used for?
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This compound is primarily used as a building block in organic synthesis, particularly for creating heterocyclic compounds and as an intermediate in pharmaceutical research and development.
What are the CAS number and formula for 3-Amino-1-methyl-1H-pyrazole hydrochloride?
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The CAS number is 127107-29-3 and the molecular formula is C4H7N3·HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Amino-1-methyl-1H-pyrazole hydrochloride with an assay of 97%. We do not represent this product as meeting USP, BP, EP, or other pharmacopoeial standards unless explicitly stated.
How should 3-Amino-1-methyl-1H-pyrazole hydrochloride be handled safely?
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This compound is classified as a Warning under GHS. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, ensuring good ventilation, and avoid contact with skin, eyes, and clothing. Refer to the Safety Data Sheet (SDS) for full details.
Is 3-Amino-1-methyl-1H-pyrazole hydrochloride a controlled substance?
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Based on the provided data, there is no indication that 3-Amino-1-methyl-1H-pyrazole hydrochloride is a controlled substance.
How is 3-Amino-1-methyl-1H-pyrazole hydrochloride shipped or exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, and we can arrange shipment and export of 3-Amino-1-methyl-1H-pyrazole hydrochloride according to relevant regulations and customer requirements.
How can I request a quote or sample?
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To request a quote or sample of 3-Amino-1-methyl-1H-pyrazole hydrochloride, please contact our sales team via the website or your usual contact person at Tech Serve Solutions.
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