Description

5-(Acetylamino)-3-[[2-[4-(1,1-Dimethylpropyl)Phenoxy]Phenyl]Azo]-4-Hydroxy-2,7-Naphthalenedisulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing specialized dyes and pigments, offering excellent chromophoric properties and stability. It is primarily sought by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of high-value, complex azo dyes for textiles and leather.
• Specialty Ink Formulations: Used in the production of pigments for inks requiring specific lightfastness and solubility properties.
• Functional Colorants: Potential applications in the development of dyes for non-textile uses, such as in paper or polymer coloration.
• Research & Development: Serves as a critical reagent in chemical research for developing new chromophores and studying dye chemistry.

Basic Information

Product Name	5-(Acetylamino)-3-[[2-[4-(1,1-Dimethylpropyl)Phenoxy]Phenyl]Azo]-4-Hydroxy-2,7-Naphthalenedisulfonic Acid Disodium Salt
CAS No.	72175-19-0
Molecular Formula	C29H27N3Na2O9S2
Molecular Weight	679.64 g/mol
Synonyms	Acid Red 337; C.I. 17200; 5-Acetamido-3-[[2-[4-(1,1-dimethylpropyl)phenoxy]phenyl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid disodium salt; 2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-3-[[2-[4-(1,1-dimethylpropyl)phenoxy]phenyl]azo]-4-hydroxy-, disodium salt; Azo dye intermediate 72175-19-0; Disodium 5-acetamido-3-[[2-(4-tert-pentylphenoxy)phenyl]azo]-4-hydroxy-2,7-naphthalenedisulphonate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, strength, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay, impurity profile, and physical properties is provided with every shipment to support your quality assurance processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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