Description

Sodium 8-Anilino-5-[[4-(Phenylazo)-1-Naphthyl]Azo]Naphthalene-1-Sulphonate is a high-purity, synthetic organic compound primarily used as a specialized dye and colorant. This product matters for its ability to provide consistent, vibrant coloration and its utility as a key intermediate in the synthesis of complex pigments. It is essential for manufacturers and research facilities in the dyes and pigments, specialty chemicals, and advanced materials sectors seeking reliable performance and supply chain stability.

Application

• Primary use as a specialized dye and colorant for industrial applications.
• Key intermediate in organic synthesis for producing complex azo pigments and dyes.
• Potential use in research and development of novel photonic or electronic materials.
• Coloration agent for specialty inks, including security or functional inks.
• Candidate for analytical chemistry as a staining agent or indicator.
• Used in the formulation of colored polymers and plastics.

Basic Information

Product Name	Sodium 8-Anilino-5-[[4-(Phenylazo)-1-Naphthyl]Azo]Naphthalene-1-Sulphonate
CAS No.	31820-78-7
Molecular Formula	C36H24N5NaO3S
Molecular Weight	629.66 g/mol
Synonyms	Acid Black 210; C.I. 300310; Sodium 8-anilino-1-naphthalenesulfonate-5-azo-4'-phenylazo-1'-naphthalene; 1-Naphthalenesulfonic acid, 8-(phenylamino)-5-[[4-(phenylazo)-1-naphthalenyl]azo]-, sodium salt; Azo Black 210; Pigment Black 210 (acid form); 8-Anilino-5-[(E)-[4-[(E)-phenyldiazenyl]naphthalen-1-yl]diazenyl]naphthalene-1-sulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 8-Anilino-5-[[4-(Phenylazo)-1-Naphthyl]Azo]Naphthalene-1-Sulphonate is manufactured under strict quality systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, strength, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (Water)	Partially soluble, forms colored solution

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