Description

Benzenesulfonic Acid, 5-Amino-2-[(4-Aminophenyl)Amino]-, Diazotized, Coupled With 1-Naphthalenol And 5,5'-Oxybis[1,3-Benzenediol], Sodium Salts is a high-purity, complex synthetic dye intermediate. This compound is engineered for exceptional color strength and stability in demanding industrial applications. It is a critical component for manufacturers in the textile, ink, and specialty coatings sectors requiring consistent, high-performance pigments.

Application

• Textile Dyeing: Primary application as a key intermediate for the synthesis of high-grade, wash-fast azo dyes for natural and synthetic fibers.
• Ink Manufacturing: Used in the production of industrial and specialty printing inks, contributing to vivid color and durability.
• Pigment Production: Serves as a crucial precursor for manufacturing organic pigments used in plastics, paints, and coatings.
• Leather Coloring: Employed in the formulation of dyes for the leather tanning and finishing industry.
• Paper Coloring: Used in the production of dyes for specialty and decorative papers.
• Research & Development: Serves as a standard or building block in chemical R&D for novel colorant development.

Basic Information

Product Name	Benzenesulfonic Acid, 5-Amino-2-[(4-Aminophenyl)Amino]-, Diazotized, Coupled With 1-Naphthalenol And 5,5'-Oxybis[1,3-Benzenediol], Sodium Salts
CAS No.	97952-80-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Pigment Black 1; C.I. 50440; Aniline Black; Oxidation Base 10; Benzenediazonium, 4-amino-2-[(4-aminophenyl)amino]-5-sulfo-, coupled with 1-naphthalenol and 5,5'-oxybis[1,3-benzenediol], sodium salts; Diazol Black; Pigment Black 1 (sodium salt)
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. A Certificate of Analysis (COA) detailing purity, strength, and impurity profiles is provided with every shipment to support your quality assurance systems.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Ash Content	Max. 2.0%
Water Solubility	Freely soluble

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