Description

4-[(5-Chloro-2-Hydroxy-3-Nitrophenyl)Azo]-3-Methyl-1-Phenyl-2-Pyrazolin-5-One is a specialized azo pyrazolone derivative valued for its ability to impart specific color properties and act as a functional intermediate. This compound is critical for industries requiring precise colorants or advanced chemical synthesis. It is primarily sought by manufacturers in the dye and pigment, pharmaceutical, and advanced materials sectors.

Application

• As a key intermediate in the synthesis of high-performance azo dyes and pigments for textiles and plastics.
• In the development of specialized colorants for inks, including security and printing inks.
• As a potential intermediate for pharmaceutical active ingredients and analytical reagents.
• In research and development for novel functional materials and chemical sensors.
• For the production of industrial color filters and light-absorbing agents.

Basic Information

Product Name	4-[(5-Chloro-2-Hydroxy-3-Nitrophenyl)Azo]-3-Methyl-1-Phenyl-2-Pyrazolin-5-One
CAS No.	15394-93-1
Molecular Formula	C16H12ClN5O4
Molecular Weight	373.75 g/mol
Synonyms	5-Chloro-2-hydroxy-3-nitrobenzenediazonium, 3-methyl-1-phenyl-5-pyrazolone coupling component; C.I. 12715; 1-Phenyl-3-methyl-4-(5-chloro-2-hydroxy-3-nitrophenylazo)-5-pyrazolone; 4-[(5-Chloro-2-hydroxy-3-nitrophenyl)azo]-3-methyl-1-phenyl-5-pyrazolone; 3-Methyl-1-phenyl-4-[(5-chloro-2-hydroxy-3-nitrophenyl)azo]-5-pyrazolone; Azo Pyrazolone Derivative CAS 15394-93-1
EINECS	Contact for details

Quality Control

Our production of 4-[(5-Chloro-2-Hydroxy-3-Nitrophenyl)Azo]-3-Methyl-1-Phenyl-2-Pyrazolin-5-One adheres to stringent internal quality protocols to ensure batch-to-batch consistency and purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical characteristics. We are committed to meeting the specific quality requirements of our global B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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