Description

Potassium Sodium 7,7'-(Carbonyldiimino)Bis[4-Hydroxy-3-[(2-Methylphenyl)Azo]Naphthalene-2-Sulphonate] is a high-purity, water-soluble azo dye complex valued for its strong colorant properties and chemical stability. This compound is essential for industries requiring precise and durable coloration in specialized applications. It is primarily utilized by manufacturers in the textile, ink, and specialty coatings sectors, where consistent batch-to-batch quality is critical for final product performance.

Application

• Primary colorant for dyeing synthetic and natural fibers in the textile industry.
• Key component in the formulation of high-performance inks for printing and packaging.
• Pigment for specialty coatings and industrial paints requiring specific lightfastness.
• Used in the coloration of plastics and polymeric materials.
• Potential application as a biological stain or indicator in laboratory settings.
• Color additive for research and development of novel dye-sensitized materials.

Basic Information

Product Name	Potassium Sodium 7,7'-(Carbonyldiimino)Bis[4-Hydroxy-3-[(2-Methylphenyl)Azo]Naphthalene-2-Sulphonate]
CAS No.	83221-62-9
Molecular Formula	C48H32K2N6Na2O14S4
Molecular Weight	Contact for details
Synonyms	Acid Red 404; C.I. 18075; Potassium Sodium Salt of 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-methylphenyl)azo]naphthalene-2-sulfonic acid]; 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-methylphenyl)azo]-2-naphthalenesulfonic acid, potassium sodium salt; Azo Dye C.I. 18075; 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-methylphenyl)azo]-, potassium sodium salt
EINECS	Contact for details

Quality Control

Our production of Potassium Sodium 7,7'-(Carbonyldiimino)Bis[4-Hydroxy-3-[(2-Methylphenyl)Azo]Naphthalene-2-Sulphonate] adheres to stringent quality management protocols to ensure high purity and batch-to-batch consistency. All materials undergo rigorous analytical testing, including HPLC and spectrophotometric analysis. Certificates of Analysis (COA) detailing purity, identity, and key physical parameters are available upon request for quality assurance and regulatory compliance.

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). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals	≤ 20 ppm
Solubility (Water)	Freely soluble

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