Description

2-Naphthalenesulfonic Acid, 7,7'-(Carbonyldiimino)Bis[ 4-Hydroxy-3-[(6-Sulfo-2-Naphthalenyl)Azo]-, Compd. With 2,2'-(Methylimino)Bis[Ethanol] (1:4) is a high-purity, complex azo dye intermediate and functional chemical compound. This product is critical for manufacturers requiring precise colorant synthesis and consistent chemical performance in demanding industrial processes. It is primarily utilized by producers of specialized dyes, pigments, and advanced materials in the textile, ink, and specialty coatings sectors.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance, complex azo dyes and pigments.
• Textile Dyeing: Used in the production of dyes for coloring natural and synthetic fibers, offering good wash and light fastness.
• Ink Formulation: Employed in the manufacture of colorants for industrial printing inks, including packaging and security inks.
• Specialty Coatings: Functions as a colorant component in coatings for plastics, leather, and other specialty surfaces.
• Research & Development: Utilized in chemical R&D for developing new chromophores and studying structure-property relationships in dye chemistry.
• Analytical Reagent: May be used as a standard or reagent in analytical chemistry for calibration and testing purposes.

Basic Information

Product Name	2-Naphthalenesulfonic Acid, 7,7'-(Carbonyldiimino)Bis[ 4-Hydroxy-3-[(6-Sulfo-2-Naphthalenyl)Azo]-, Compd. With 2,2'-(Methylimino)Bis[Ethanol] (1:4)
CAS No.	72869-93-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Acid Black 194; Acid Black 194; 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(6-sulfo-2-naphthalenyl)azo]-2-naphthalenesulfonic acid, compound with 2,2'-(methylimino)bis[ethanol] (1:4); Azo dye intermediate for Acid Black 194; 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(6-sulfo-2-naphthalenyl)azo]-, compd. with 2,2'-(methylimino)diethanol (1:4)
EINECS	Contact for details

Quality Control

Our production of 2-Naphthalenesulfonic Acid, 7,7'-(Carbonyldiimino)Bis[ 4-Hydroxy-3-[(6-Sulfo-2-Naphthalenyl)Azo]-, Compd. With 2,2'-(Methylimino)Bis[Ethanol] (1:4) adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity for industrial applications. Quality is verified through advanced analytical techniques including HPLC, spectrophotometry, and titration. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

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). This compound is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to minimize exposure to atmospheric humidity. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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