Description

5-(Benzoylamino)-4-Hydroxy-3-[[2-[4-(tert-Pentyl)Phenoxy]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its value lies in its ability to impart specific color properties and functional characteristics in advanced material formulations. This compound is essential for manufacturers in the textile, ink, and specialty polymer industries seeking to develop high-performance, color-stable products.

Application

• Textile Dyeing: As a key intermediate for synthesizing acid and direct dyes for nylon, wool, and silk fibers.
• Ink Manufacturing: Used in the production of high-quality inks for packaging, security printing, and digital applications.
• Functional Polymers: Acts as a chromophore in the synthesis of colored polymers and engineering plastics.
• Research & Development: Serves as a standard or building block in chemical research for novel dye and pigment synthesis.
• Paper Coloring: Employed in the manufacture of specialty colored papers and coatings.
• Leather Finishing: Used in dye formulations for achieving vibrant and durable colors on leather goods.

Basic Information

Product Name	5-(Benzoylamino)-4-Hydroxy-3-[[2-[4-(tert-Pentyl)Phenoxy]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt
CAS No.	93892-28-5
Molecular Formula	C34H29N3O8S2Na
Molecular Weight	703.72 g/mol
Synonyms	Acid Red 423; C.I. 18130; Sodium 5-(benzoylamino)-4-hydroxy-3-[[2-[4-(1,1-dimethylpropyl)phenoxy]phenyl]azo]naphthalene-2,7-disulphonate; 5-(Benzoylamino)-4-hydroxy-3-((2-(p-(1,1-dimethylpropyl)phenoxy)phenyl)azo)-2,7-naphthalenedisulfonic acid disodium salt; 2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-4-hydroxy-3-((2-(p-(1,1-dimethylpropyl)phenoxy)phenyl)azo)-, disodium salt; Tert-Pentyl derivative of an azo dye intermediate; Azo dye intermediate for Acid Red
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Every lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. A detailed Certificate of Analysis (COA) documenting identity, purity, and physical parameters is 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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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