Description

Benzoic Acid, 2-Hydroxy-3-(2-Phenyldiazenyl)- is a specialized azo dye intermediate with the CAS number 136819-59-5. This compound is valued for its role as a key precursor in the synthesis of high-performance pigments and colorants, offering precise molecular control over hue and stability. It is primarily required by manufacturers in the dyes and pigments, specialty chemicals, and advanced material research sectors seeking to develop custom color solutions.

Application

• Primary Intermediate for Azo Pigments: Serves as a crucial building block in the manufacturing of high-performance organic pigments for plastics, coatings, and inks.
• Specialty Dye Synthesis: Used in the production of specialized dyes for textiles, leather, and paper industries.
• Research & Development: Employed in academic and industrial R&D labs for developing novel chromophores and functional materials.
• Fine Chemical Production: Acts as a precursor in multi-step synthesis for advanced pharmaceutical intermediates or agrochemicals.
• Analytical Chemistry: May be used as a standard or reagent in chromatographic analysis and method development.

Basic Information

Product Name	Benzoic Acid, 2-Hydroxy-3-(2-Phenyldiazenyl)-
CAS No.	136819-59-5
Molecular Formula	C₁₃H₁₀N₂O₃
Molecular Weight	242.23 g/mol
Synonyms	2-Hydroxy-3-(2-phenyldiazenyl)benzoic acid; 3-(Phenylazo)salicylic acid; o-Hydroxy-m-(phenylazo)benzoic acid; Salicylic acid, 3-(phenylazo)-; Azo dye intermediate 136819-59-5; 2-Carboxy-6-hydroxy-3-phenylazobenzene; Benzoic acid, o-hydroxy-m-(phenylazo)-
EINECS	Contact for details

Quality Control

Our production of Benzoic Acid, 2-Hydroxy-3-(2-Phenyldiazenyl)- adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request 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 place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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