Description

4-Chlorophenylhydrazine Hydrochloride is a versatile and reactive aromatic hydrazine derivative, primarily valued as a key synthetic intermediate in the production of heterocyclic compounds. Its importance lies in its ability to form pyrazole and indazole rings, which are core structures in numerous active pharmaceutical ingredients and agrochemicals. This compound is essential for research and development chemists, process chemists, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to build complex molecular architectures.

Application

• Pharmaceutical Intermediate: Critical building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those containing pyrazole, indazole, or other nitrogen-containing heterocycles.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the phenylhydrazine moiety imparts specific biological activity.
• Dyestuff and Pigment Manufacturing: Serves as a precursor in the synthesis of azo dyes and complex organic pigments, contributing to color development and stability.
• Research & Development: A valuable reagent in medicinal chemistry and organic synthesis for constructing novel chemical entities and exploring structure-activity relationships.
• Chemical Synthesis: Employed in various organic transformations, including Fischer indole synthesis and the preparation of hydrazones for further functionalization.

Basic Information

Product Name	4-Chlorophenylhydrazine Hydrochloride
CAS No.	1073-70-7
Molecular Formula	C6H8Cl2N2
Molecular Weight	179.05 g/mol
Synonyms	(4-Chlorophenyl)hydrazine hydrochloride; 1-(4-Chlorophenyl)hydrazine hydrochloride; p-Chlorophenylhydrazine hydrochloride; 4-Chloro-benzenesulfonamide; Hydrazine, (4-chlorophenyl)-, hydrochloride (1:1)
EINECS	214-020-4

Quality Control

Our 4-Chlorophenylhydrazine Hydrochloride is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, which includes results from HPLC, NMR, and other relevant analytical techniques. Our quality commitment ensures the material meets the high standards required for pharmaceutical and advanced synthetic applications.

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 material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent decomposition. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	215 - 220 °C (dec.)
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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