Description

4-[[2,4-Dihydroxy-5-[(2-Hydroxy-4,6-Dinitrophenyl)Azo]Phenyl]Azo]-5-Hydroxy-2,7-Naphthalenedisulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its complex molecular structure, featuring multiple azo linkages and sulfonate groups, makes it a critical precursor for synthesizing specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce vivid, stable colors.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of complex, high-performance azo dyes, particularly for textile fibers like cotton, wool, and nylon.
• Specialty Pigment Manufacturing: Used in the production of pigments for inks, including printing inks and colorants for plastics and coatings, where lightfastness and chemical stability are required.
• Biological Staining Reagent: Potential use as a staining agent in histology and microbiology due to its chromophoric properties, though specific grades must be validated for this purpose.
• Research & Development: Employed in chemical research as a model compound for studying azo dye chemistry, photodegradation, and metal-complexing behaviors.
• Analytical Chemistry: Can function as a colorimetric indicator or a complexometric agent in certain analytical methods.

Basic Information

Product Name	4-[[2,4-Dihydroxy-5-[(2-Hydroxy-4,6-Dinitrophenyl)Azo]Phenyl]Azo]-5-Hydroxy-2,7-Naphthalenedisulfonic Acid Disodium Salt
CAS No.	63589-12-8
Molecular Formula	C22H12N6Na2O14S2
Molecular Weight	702.47 g/mol
Synonyms	Acid Black 107; C.I. 17725; 2,7-Naphthalenedisulfonic acid, 4-[[2,4-dihydroxy-5-[(2-hydroxy-4,6-dinitrophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt; Disodium 4-[[2,4-dihydroxy-5-[(2-hydroxy-4,6-dinitrophenyl)azo]phenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonate; Azo Black 107; C.I. Acid Black 107; Dye Intermediate 63589-12-8
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques including HPLC and spectrophotometry to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications 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 light-sensitive (store away from light) and hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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