Description

1-Naphthalenesulfonic Acid, 4-2,4-Dihydroxy(4-Nitrophenyl)Azo4-(Phenylamino)-3-Sulfophenylazophenylazo-3-Hydroxy-7-Nitro- is a complex, high-purity azo dye intermediate characterized by its multi-sulfonated and nitrated naphthalene core structure. This compound matters for its role as a critical precursor in synthesizing specialized, high-performance dyes and pigments, offering excellent color fastness and thermal stability. Industrial manufacturers in the textile, ink, and specialty coatings sectors require this chemical to produce vivid, durable colors for demanding applications.

Application

• Primary intermediate for the synthesis of high-grade azo dyes and pigments used in textile coloring.
• Key component in manufacturing specialty inks for packaging, security printing, and digital applications.
• Precursor for functional dyes used in optical data storage, liquid crystal displays (LCDs), and laser printing.
• Used in the production of colorants for plastics and polymers, providing UV stability and color consistency.
• Research and development of novel photographic sensitizers and imaging chemicals.
• Potential use as a biological stain or histochemical dye in laboratory settings.

Basic Information

Product Name	1-Naphthalenesulfonic Acid, 4-2,4-Dihydroxy(4-Nitrophenyl)Azo4-(Phenylamino)-3-Sulfophenylazophenylazo-3-Hydroxy-7-Nitro-
CAS No.	57774-05-7
Molecular Formula	C34H23N7O13S2
Molecular Weight	801.71 g/mol
Synonyms	Acid Black 210; C.I. 30027; 1-Naphthalenesulfonic acid, 4-[[2,4-dihydroxy-4-[(4-nitrophenyl)azo]phenyl]azo]-4-[(phenylamino)-3-sulfophenyl]azo]-3-hydroxy-7-nitro-; 4-[[2,4-Dihydroxy-4-[(4-nitrophenyl)azo]phenyl]azo]-4-[(phenylamino)-3-sulfophenyl]azo]-3-hydroxy-7-nitro-1-naphthalenesulfonic acid; Azo Dye Intermediate 57774-05-7; Black Dye Intermediate 210; CAS 57774-05-7
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical methods including HPLC, UV-Vis spectroscopy, and titration. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

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 degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in water)	Partially soluble, forms colloidal solution

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