Description

4-Methylphenylhydrazine Hydrochloride is a versatile organic salt widely used as a key synthetic intermediate in the production of heterocyclic compounds and fine chemicals. Its primary value lies in its role as a building block for pharmaceuticals, agrochemicals, and dyes, enabling the formation of pyrazole and indole derivatives. This high-purity intermediate is essential for research and development laboratories, as well as production facilities in the pharmaceutical and specialty chemical industries.

Application

• Pharmaceutical Intermediate: Critical building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those containing pyrazole or indole cores.
• Agrochemical Synthesis: Used in the manufacture of pesticides, herbicides, and fungicides, where its hydrazine moiety is key to creating specific biological activity.
• Dye and Pigment Production: Serves as a precursor for azo dyes and other complex colorants, contributing to chromophore development.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways in organic chemistry.
• Fine Chemical Synthesis: Employed in the custom synthesis of complex molecules for electronics, materials science, and other high-tech applications.

Basic Information

Product Name	4-Methylphenylhydrazine Hydrochloride
CAS No.	637-60-5
Molecular Formula	C7H10N2·HCl
Molecular Weight	158.63 g/mol
Synonyms	p-Tolylhydrazine Hydrochloride; (4-Methylphenyl)hydrazine Hydrochloride; 1-(4-Methylphenyl)hydrazine Hydrochloride; 4-Methyl-1-phenylhydrazine Hydrochloride; 4-Methylphenylhydrazinium Chloride; p-Methylphenylhydrazine Hydrochloride; Tolylhydrazine Hydrochloride
EINECS	211-304-4

Quality Control

Our 4-Methylphenylhydrazine Hydrochloride is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment aligns with cGMP principles where applicable, supporting its use in regulated synthesis pathways.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent degradation.

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.