Description

Tetramethyl 2,2'-[1,4-Phenylenebis[Imino(1-Acetyl-2-Oxoethane-1,2-Diyl)Azo]]Bisterephthalate is a specialized, high-purity organic compound belonging to the class of complex azo dyes and intermediates. This compound matters for its role as a key chromophore and functional building block in the synthesis of advanced colorants and functional materials. It is primarily needed by manufacturers in the specialty dyes and pigments, advanced polymer, and high-performance materials industries seeking precise molecular structures for specific optical or electronic properties.

Application

• Specialty Dye & Pigment Synthesis: As a critical intermediate for producing high-value azo dyes with specific color fastness and stability properties.
• Functional Polymer Additive: Incorporated into polymer matrices to impart color, UV absorption, or other functional characteristics.
• Optical Material Research: Used in the development of non-linear optical (NLO) materials, liquid crystal displays (LCDs), and organic light-emitting diodes (OLEDs).
• Analytical Chemistry Reagent: Serves as a standard or reagent in chromatographic analysis and spectroscopic studies of complex organic molecules.
• Advanced Coating Formulations: Utilized in the creation of specialized coatings for automotive, aerospace, or electronic applications requiring precise color and durability.
• Chemical Sensor Development: Acts as a sensing moiety in the design of colorimetric or fluorescent sensors for detecting specific ions or molecules.

Basic Information

Product Name	Tetramethyl 2,2'-[1,4-Phenylenebis[Imino(1-Acetyl-2-Oxoethane-1,2-Diyl)Azo]]Bisterephthalate
CAS No.	68516-73-4
Molecular Formula	C40H32N6O12
Molecular Weight	764.72 g/mol
Synonyms	Tetramethyl 4,4'-(1,4-phenylenebis(azanediyl))bis(4-oxo-2-(phenyldiazenyl)butanoate); 1,4-Bis[2-(4-carbomethoxyphenylazo)-2-acetamidoacetylaminobenzene]; C.I. Disperse Yellow 218 (related intermediate); Bisterephthalate azo dye intermediate 68516-73-4; 4,4'-(1,4-Phenylenebis(azanediyl))bis(2-(2-methyl-4-((2-methylphenyl)diazenyl)phenyl)-4-oxobutanoic acid) tetramethyl ester (isomeric form); Azo dye intermediate for polymers; Complex phenylenebisazo compound
EINECS	Contact for details

Quality Control

Our production of Tetramethyl 2,2'-[1,4-Phenylenebis[Imino(1-Acetyl-2-Oxoethane-1,2-Diyl)Azo]]Bisterephthalate adheres to a rigorous quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and tests for residual solvents and heavy metals to ensure it meets exacting customer specifications. Certificates of Analysis (COA) documenting all test results are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to its complex organic structure, prolonged exposure to elevated temperatures or humidity should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	Yellow to orange-red crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0% (Area Percent)
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH Q3C guidelines

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