Description

2,7-Naphthalenedisulfonic Acid, 3,3'-[(3,3'-Dimethoxy[1,1'- Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[5-Amino-4-Hydroxy -, Trilithium Monosodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its role in synthesizing specialized dyes and pigments, offering excellent color strength and stability. It is primarily sought by manufacturers in the textile, ink, and specialty chemical sectors for producing high-performance colorants.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the synthesis of high-value, complex azo dyes used in textile dyeing and printing.
• Specialty Ink Formulations: Used in the production of colorants for inks, including those for packaging, security printing, and digital applications.
• Functional Dye Synthesis: A precursor for dyes with specific properties, such as light-fastness or compatibility with synthetic fibers like polyester and nylon.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Industrial Colorant Production: Integral to manufacturing batches of consistent, high-purity colorants for various industrial applications.

Basic Information

Product Name	2,7-Naphthalenedisulfonic Acid, 3,3'-[(3,3'-Dimethoxy[1,1'- Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[5-Amino-4-Hydroxy -, Trilithium Monosodium Salt
CAS No.	75752-17-9
Molecular Formula	C34H22Li3N6NaO14S2
Molecular Weight	~ 846.5 g/mol (Contact for exact details)
Synonyms	Acid Black 210; C.I. 300310; Direct Black 210; Trilithium Monosodium Salt of 3,3'-[(3,3'-Dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid]; Azo Dye Intermediate 75752-17-9; 3,3'-[(3,3'-Dimethoxy-4,4'-biphenylylene)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid] trilithium monosodium salt
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques like HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance processes.

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 hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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