Description

4'-Amino-4-[[4-(2-Carboxyphenylazo)-5-Oxo-2,5-Dihydro-1H-Pyrazol-1-Yl]Methyl]Stilbene-2,2'-Disulfonic Acid is a high-purity, complex organic intermediate of significant commercial importance. This compound is valued for its unique molecular structure, which serves as a critical building block in the synthesis of specialized dyes and functional materials. It is primarily sought by manufacturers in the fine chemical, specialty dye, and advanced material research sectors for developing products with specific optical and chemical properties.

Application

• Key Intermediate for Optical Brightening Agents (OBAs): Serves as a crucial precursor in the synthesis of high-performance stilbene-based fluorescent whitening agents used in paper, textiles, and detergents.
• Specialty Dye Synthesis: Used in the manufacture of complex azo dyes and pigments requiring specific light-fastness and color properties for technical applications.
• Functional Material Research: Acts as a building block in research and development of organic light-emitting diodes (OLEDs), sensors, and other advanced electronic materials.
• Biochemical Probes: Potential use in developing fluorescent tags and probes for biochemical and diagnostic applications due to its derivatizable structure.
• Polymer Modification: Can be incorporated into polymer chains to impart specific ionic or chromophoric characteristics.

Basic Information

Product Name	4'-Amino-4-[[4-(2-Carboxyphenylazo)-5-Oxo-2,5-Dihydro-1H-Pyrazol-1-Yl]Methyl]Stilbene-2,2'-Disulfonic Acid
CAS No.	92815-67-3
Molecular Formula	C30H23N5O9S2
Molecular Weight	661.66 g/mol
Synonyms	4'-Amino-4-[[4-(2-carboxyphenylazo)-5-oxo-2,5-dihydro-1H-pyrazol-1-yl]methyl]-2,2'-stilbenedisulfonic acid; Stilbene derivative 92815-67-3; 4-Amino-4'-[4-(2-carboxyphenylazo)-5-oxo-4,5-dihydro-1H-pyrazol-1-ylmethyl]stilbene-2,2'-disulfonic acid; 1-[[4'-Amino-2,2'-disulfostilben-4-yl]methyl]-4-(2-carboxyphenylazo)-5-pyrazolone; Fluorescent Brightener Intermediate
EINECS	Contact for details

Quality Control

Our production of 4'-Amino-4-[[4-(2-Carboxyphenylazo)-5-Oxo-2,5-Dihydro-1H-Pyrazol-1-Yl]Methyl]Stilbene-2,2'-Disulfonic Acid adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing all critical parameters are provided with each shipment.

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). Keep away from strong acids and organic solvents. The container must be kept tightly sealed to protect the contents from moisture.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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