Description

6,6'-[Carbonylbis[Imino(1-Hydroxynaphthalene-2,6-Diyl)Azo]]Bisnaphthalene-2-Sulphonic Acid is a high-purity, complex azo dye intermediate characterized by its distinct chemical structure. This compound is critical for synthesizing specialized dyes and pigments that require excellent lightfastness and color strength. It is primarily sought after by manufacturers in the textile, ink, and advanced materials sectors for producing high-performance colorants.

Application

• Textile Dye Intermediate: A key precursor for manufacturing high-grade, wash-fast azo dyes for synthetic and natural fibers.
• Industrial Pigment Production: Used in the synthesis of organic pigments for paints, coatings, and plastics, offering vibrant hues and stability.
• Specialty Ink Formulation: Essential for creating colorants in high-performance printing inks, including those for packaging and security applications.
• Liquid Crystal Display (LCD) Color Filters: Serves as a sophisticated dye intermediate in the production of color filters for electronic displays.
• Biological Staining Agent: Potential use as a specialized stain in histology and microscopy due to its chromophoric properties.
• Research & Development: Employed in chemical research as a model compound for studying azo dye chemistry and photophysical properties.

Basic Information

Product Name	6,6'-[Carbonylbis[Imino(1-Hydroxynaphthalene-2,6-Diyl)Azo]]Bisnaphthalene-2-Sulphonic Acid
CAS No.	65000-34-2
Molecular Formula	C47H28N6O9S2
Molecular Weight	885.89 g/mol
Synonyms	Acid Black 210; C.I. 300310; 6,6'-[Carbonylbis[imino(1-hydroxy-2,6-naphthalenediyl)azo]]bis[2-naphthalenesulfonic acid]; Bisazo Black Dye Intermediate; Azo Dye Precursor 65000-34-2; 2-Naphthalenesulfonic acid, 6,6'-[carbonylbis[imino(1-hydroxy-2,6-naphthalenediyl)azo]]bis-; Direct Black 210 Intermediate
EINECS	Contact for details

Quality Control

Our production of 6,6'-[Carbonylbis[Imino(1-Hydroxynaphthalene-2,6-Diyl)Azo]]Bisnaphthalene-2-Sulphonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The material is characterized using advanced analytical techniques including HPLC, FT-IR, and elemental analysis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Complete, clear solution

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