Description

Trilithium 6-[(2,4-diaminophenyl)azo]-3-[[4-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]phenyl]amino]-3-sulphonatophenyl]azo]-4-hydroxynaphthalene-2-sulphonate is a high-purity, complex azo dye intermediate with exceptional color strength and stability. This compound is critical for manufacturers requiring precise and consistent chromophores for advanced dye and pigment synthesis. It is primarily utilized by the textile, ink, and specialty coatings industries for producing high-performance colorants.

Application

• Textile Dyeing: As a key intermediate for synthesizing high-grade, wash-fast azo dyes for natural and synthetic fibers.
• Ink Manufacturing: For the production of intense, stable pigments used in industrial printing inks and toners.
• Specialty Coatings: As a chromophore component in coatings for plastics, automotive finishes, and other high-durability applications.
• Research & Development: Serving as a reference standard or building block in the development of novel colorants and functional dyes.
• Functional Materials: Potential use in the synthesis of dyes for optical applications or sensor technologies.

Basic Information

Product Name	Trilithium 6-[(2,4-diaminophenyl)azo]-3-[[4-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]phenyl]amino]-3-sulphonatophenyl]azo]-4-hydroxynaphthalene-2-sulphonate
CAS No.	83221-68-5
Molecular Formula	C44H28Li3N12O14S4
Molecular Weight	~1123.0 g/mol (Contact for details)
Synonyms	Lithium Salt of Direct Black 22; C.I. Direct Black 22, Lithium Salt; Trilithium Direct Black 22; 6-[(2,4-Diaminophenyl)azo]-3-[[4-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-2-naphthalenesulfonic Acid Trilithium Salt; C.I. 35435, Lithium Salt; Direct Black 22 Li Salt; Azo Black Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling and spectrophotometric analysis for color value. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Completely soluble

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