Description

4,4'-Diaminodiphenyl-3,3'-Diglycolic Acid is a high-purity, bifunctional organic compound containing both aromatic amine and carboxylic acid groups. This unique structure makes it a valuable key intermediate for the synthesis of advanced polymers and specialty chemicals. It is primarily sought after by manufacturers in the pharmaceutical, agrochemical, and polymer industries for developing products with specific performance characteristics.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a rigid, symmetrical diamine-diacid backbone.
• Polymer Precursor: Serves as a monomer for producing high-performance polyamides, polyimides, and other specialty polymers with enhanced thermal and mechanical properties.
• Agrochemical Synthesis: Acts as a building block for creating novel herbicides, fungicides, and plant growth regulators.
• Crosslinking Agent: Utilized in epoxy resin systems and other thermosetting polymers to improve crosslink density and chemical resistance.
• Chelating Agent Synthesis: A precursor for manufacturing specialized chelating ligands used in metal ion sequestration and catalysis.
• Dye and Pigment Intermediate: Employed in the production of azo dyes and organic pigments, contributing to color fastness and stability.

Basic Information

Product Name	4,4'-Diaminodiphenyl-3,3'-Diglycolic Acid
CAS No.	3366-63-0
Molecular Formula	C₁₆H₁₆N₂O₆
Molecular Weight	332.31 g/mol
Synonyms	3,3'-[4,4'-Diamino-1,1'-biphenyl-3,3'-diyl]bis(2-hydroxypropanoic acid); 4,4'-Diaminobiphenyl-3,3'-diacetic acid, α,α'-dihydroxy-; Bis(3-amino-4-carboxyphenyl)glycolic acid; DAPG; 4,4'-Diamino-3,3'-dicarboxydiphenyl glycolic acid; N,N'-(3,3'-Dicarboxybiphenyl-4,4'-diyl)diglycine
EINECS	222-155-8

Quality Control

Our 4,4'-Diaminodiphenyl-3,3'-Diglycolic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under dry conditions. For long-term storage, consider an inert atmosphere to minimize oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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