Description

Trisodium 7-[[4-[(4-Aminophenyl)Azo]Phenyl]Azo]Naphthalene-1,3,5-Trisulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its core value lies in its ability to impart a strong, stable color and serve as a versatile building block for synthesizing more complex dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking reliable and consistent colorant precursors.

Application

• Primary Intermediate for Azo Dyes: A key precursor in the synthesis of acid dyes, direct dyes, and reactive dyes used for coloring wool, silk, nylon, and paper.
• Textile Industry: Used in the production of dyes for textile fibers, providing good wash and light fastness properties.
• Ink Manufacturing: Serves as a colorant component in the formulation of inks for various printing applications.
• Biological Staining: Potential use as a staining agent in histology and microscopy due to its azo chromophore structure.
• Research & Development: Employed in chemical research as a model compound for studying azo coupling reactions and dye chemistry.
• Specialty Chemical Synthesis: Acts as a functional intermediate for creating more complex molecules in agrochemical and pharmaceutical research.

Basic Information

Item	Detail
Product Name	Trisodium 7-[[4-[(4-Aminophenyl)Azo]Phenyl]Azo]Naphthalene-1,3,5-Trisulphonate
CAS No.	68400-38-4
Molecular Formula	C22H13N5Na3O9S3
Molecular Weight	688.52 g/mol
Synonyms	Acid Black 24; C.I. 26370; 7-[[4-[(4-Aminophenyl)azo]phenyl]azo]-1,3,5-naphthalenetrisulfonic acid trisodium salt; Trisodium 4-aminoazobenzene-4'-azo-7-naphthol-1,3,5-trisulphonate; Azoamine Black; Naphthol Black; Benzyl Fast Black
EINECS	Contact for details

Quality Control

Our production of Trisodium 7-[[4-[(4-Aminophenyl)Azo]Phenyl]Azo]Naphthalene-1,3,5-Trisulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and consistent performance standards. Certificates of Analysis (COA) documenting all critical quality parameters are available upon request.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content (KF)	Max. 5.0%
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm

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