Description

2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-, Coupled With Diazotized 4-Nitrobenzenamine And Resorcinol is a complex, high-value synthetic dye intermediate. This compound is critical for producing specific, high-performance dyes and pigments with excellent color fastness and stability. It is primarily needed by manufacturers in the textile, leather, and specialty ink industries seeking to formulate vibrant and durable colorants. Its precise chemical structure allows for fine-tuning of shade and application properties in advanced coloring processes.

Application

• Primary Intermediate for Azo Dyes: Serves as a key coupling component in the synthesis of high-grade azo dyes for textiles and leather.
• Specialty Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics requiring specific color characteristics.
• Functional Dye Synthesis: A building block for dyes used in non-textile applications, such as paper coloring or biological staining.
• Research & Development: Employed in chemical R&D for developing new chromophores and studying dye chemistry.

Basic Information

Product Name	2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-, Coupled With Diazotized 4-Nitrobenzenamine And Resorcinol
CAS No.	94552-30-4
Molecular Formula	C23H17N5O10S2 (Tentative, based on structure)
Molecular Weight	Contact for details
Synonyms	4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, coupled with diazotized 4-nitrobenzenamine and resorcinol; C.I. Azoic Coupling Component; Dye Intermediate 94552-30-4; Azo Dye Coupler; Naphthalene-based disulfonic acid dye intermediate; 4-Nitroaniline diazonium salt coupled intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. While specific pharmacopeial grades may not apply, quality is assured through analytical methods including HPLC and spectrophotometry. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles 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, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95% (or as per grade)
Moisture Content	Max. 2.0%
Solubility	Soluble in alkaline water

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