Description

4-Hydrazinyl-1-Methyl-1H-Pyrazole Hydrochloride is a high-purity, functionalized pyrazole derivative offered as a hydrochloride salt for enhanced stability and handling. This compound serves as a critical pharmaceutical intermediate and versatile chemical building block for advanced organic synthesis. It is primarily utilized by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking to incorporate a reactive hydrazinyl moiety into complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those targeting central nervous system (CNS) disorders and metabolic diseases.
• Agrochemical Synthesis: Building block for developing novel herbicides, fungicides, and plant growth regulators with pyrazole-based activity.
• Heterocyclic Chemistry: Essential reagent for constructing complex nitrogen-containing heterocycles in medicinal and combinatorial chemistry.
• Ligand and Catalyst Development: Used to create specialized chelating ligands for metal catalysis and coordination chemistry applications.
• Chemical Research: Valuable scaffold for academic and industrial research into new chemical entities and structure-activity relationships (SAR).
• Fine Chemical Production: Intermediate in the multi-step synthesis of dyes, pigments, and other high-value specialty chemicals.

Basic Information

Product Name	4-Hydrazinyl-1-Methyl-1H-Pyrazole Hydrochloride
CAS No.	1959556-31-0
Molecular Formula	C4H9N4•HCl
Molecular Weight	148.60 g/mol
Synonyms	1-Methyl-1H-pyrazole-4-hydrazine hydrochloride; 1-Methyl-4-hydrazinyl-1H-pyrazole hydrochloride; 4-Hydrazino-1-methyl-1H-pyrazole hydrochloride; 1-Methyl-1H-pyrazol-4-ylhydrazine hydrochloride; 4-Hydrazinyl-1-methylpyrazole HCl; Pyrazole-4-hydrazine, 1-methyl-, hydrochloride
EINECS	Contact for details

Quality Control

Our 4-Hydrazinyl-1-Methyl-1H-Pyrazole Hydrochloride is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets exacting standards for research and production use. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.