Description

4-Chloro-5-Methyl-2H-Pyrazol-3-Ylamine Hydrochloride is a high-purity, versatile heterocyclic building block essential for advanced organic synthesis. This compound matters as a critical intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, where its unique pyrazole core enables the creation of complex molecular architectures. It is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for constructing targeted bioactive molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in the development of kinase inhibitors and other small-molecule therapeutics.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, leveraging its heterocyclic structure for biological activity.
• Chemical Research & Development: Serves as a fundamental building block in academic and industrial R&D for exploring new chemical entities and reaction pathways.
• Dye and Pigment Manufacturing: Employed in the synthesis of specialized heterocyclic dyes and functional colorants.
• Material Science: Potential intermediate for creating functional polymers or ligands for metal-organic frameworks (MOFs).

Basic Information

Product Name	4-Chloro-5-Methyl-2H-Pyrazol-3-Ylamine Hydrochloride
CAS No.	130128-49-3
Molecular Formula	C4H7Cl2N3
Molecular Weight	168.02 g/mol
Synonyms	4-Chloro-5-methyl-1H-pyrazol-3-amine hydrochloride; 3-Amino-4-chloro-5-methyl-1H-pyrazole hydrochloride; 4-Chloro-5-methyl-1H-pyrazol-3-amine HCl; 4-Chloro-5-methyl-2H-pyrazol-3-ylamine hydrochloride; 4-Chloro-5-methyl-3-pyrazolamine hydrochloride; 1H-Pyrazol-3-amine, 4-chloro-5-methyl-, hydrochloride; 130128-49-3
EINECS	Contact for details

Quality Control

Our 4-Chloro-5-Methyl-2H-Pyrazol-3-Ylamine Hydrochloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and consistency. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available for every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 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.