Description

Tetrasodium 5,5'-(Carbonyldiimino)Bis[8-[[4-[(4-Sulphonatophenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulphonate] is a high-purity, water-soluble organic dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing high-performance dyes and pigments, offering excellent color strength and stability. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes for cotton and other cellulose fibers.
• Direct Dye Production: Used in the manufacture of direct dyes for paper, leather, and textile applications.
• Functional Pigment Synthesis: Serves as a precursor for creating complex organic pigments with specific optical properties.
• Inkjet Ink Formulations: Employed in the development of advanced colorants for industrial and commercial inkjet printing.
• Research & Development: Utilized in chemical R&D for creating novel chromophores and studying azo dye chemistry.
• Analytical Chemistry: Can be used as a standard or reagent in colorimetric analysis and detection methods.

Basic Information

Product Name	Tetrasodium 5,5'-(Carbonyldiimino)Bis[8-[[4-[(4-Sulphonatophenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulphonate]
CAS No.	68460-08-2
Molecular Formula	C52H30N10Na4O16S4
Molecular Weight	Approx. 1250.0 g/mol
Synonyms	Direct Blue 199 (tetrasodium salt); C.I. 74190; Tetrasodium 5,5'-(carbonylbis(azanediyl))bis(8-((4-((4-sulfonatophenyl)diazenyl)phenyl)diazenyl)naphthalene-2-sulfonate); Direct Blue 199; 5,5'-(Carbonyldiimino)bis[8-[[4-[(4-sulfophenyl)azo]phenyl]azo]-2-naphthalenesulfonic acid, tetrasodium salt; C.I. Direct Blue 199; Tetrasodium 5,5'-(carbonylbis(azanediyl))bis(8-((4-((4-sulfonatophenyl)diazenyl)phenyl)diazenyl)naphthalene-2-sulfonate)
EINECS	Contact for details

Quality Control

Our production of Tetrasodium 5,5'-(Carbonyldiimino)Bis[8-[[4-[(4-Sulphonatophenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulphonate] adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity for industrial applications. Each lot is analyzed to confirm identity, strength, and the absence of critical impurities. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 90.0%
Moisture Content	≤ 8.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	7.0 - 9.0

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