Description

3-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sulpho-2-Naphthyl)Azo]-6-Sulpho-1-Naphthyl]Azo]-1-Naphthyl]Azo]Naphthalene-1,5-Disulphonic Acid, Sodium Salt is a high-purity, polyazo dye intermediate known for its complex molecular structure and excellent chromophoric properties. This compound is essential for synthesizing specialized dyes and pigments that require high color strength and specific light-fastness characteristics. It is primarily sought by manufacturers in the textile, ink, and specialty coatings industries for producing high-performance colorants.

Application

• Primary Intermediate for Polyazo Dyes: A key building block in the synthesis of deep, complex shades of black, navy blue, and brown dyes for textiles and leather.
• Specialty Ink Manufacturing: Used in the production of high-quality inks for packaging, security printing, and digital textile printing where color consistency and durability are critical.
• Industrial Pigment Synthesis: Serves as a precursor for creating organic pigments used in plastics, paints, and coatings that demand superior weatherability.
• Research & Development: Utilized in chemical research for developing novel chromophores and studying azo dye chemistry and photostability.
• Functional Dye Production: Potential use in the synthesis of dyes for non-textile applications, such as in optical data storage or as sensitizers.

Basic Information

Product Name	3-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sulpho-2-Naphthyl)Azo]-6-Sulpho-1-Naphthyl]Azo]-1-Naphthyl]Azo]Naphthalene-1,5-Disulphonic Acid, Sodium Salt
CAS No.	75627-20-2
Molecular Formula	C40H23N7O13S4•xNa
Molecular Weight	Contact for details
Synonyms	Acid Black 210 (C.I. 300310)
C.I. Acid Black 210
3-[[4-[[4-[(6-Amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-6-sulfo-1-naphthyl]azo]-1-naphthyl]azo]naphthalene-1,5-disulfonic acid, sodium salt
Black 210
Acid Black 210, Sodium Salt
Polyazo Black Dye Intermediate
Contact for details
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques like HPLC to confirm identity and assay. Certificates of Analysis (COA) detailing purity, impurity profile, and physical specifications are provided with each shipment to support your quality assurance protocols.

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 material is moisture-sensitive (hygroscopic); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
pH (1% Solution)	6.0 - 8.0

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