Description

3,3'-Dithiobis(4-Aminobenzoic Acid) is a specialized aromatic disulfide compound featuring both carboxylic acid and primary amine functional groups. This unique bifunctional structure makes it a valuable intermediate for synthesizing novel polymers, pharmaceutical agents, and advanced materials. It is particularly sought after by research and development teams in the pharmaceutical, agrochemical, and polymer science industries for creating disulfide-linked conjugates, cross-linked hydrogels, and functionalized surfaces. The compound is supplied with a high level of purity to ensure consistent performance in sensitive chemical syntheses.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those utilizing disulfide bonds for targeted delivery or controlled release.
• Polymer Cross-Linking Agent: Used to create disulfide-crosslinked hydrogels and smart polymers with redox-responsive properties for biomedical and material science applications.
• Bioconjugation Reagent: Facilitates the site-specific coupling of peptides, proteins, or other biomolecules via its amine-reactive and/or carboxyl-reactive groups.
• Agrochemical Synthesis: Intermediate in the development of new crop protection agents and plant growth regulators.
• Surface Functionalization: Used to modify material surfaces (e.g., gold, silica) to introduce amine or carboxyl groups for further chemical attachment.
• Research & Development: A versatile tool in organic synthesis for exploring new disulfide chemistry and creating complex molecular architectures.

Basic Information

Product Name	3,3'-Dithiobis(4-Aminobenzoic Acid)
CAS No.	102449-89-8
Molecular Formula	C14H12N2O4S2
Molecular Weight	336.39 g/mol
Synonyms	4,4'-Dithiobis(2-aminobenzoic acid); 4-Aminobenzoic acid, 4,4'-dithiobis-; 2-Amino-4-carboxyphenyl disulfide; Bis(4-amino-2-carboxyphenyl) disulfide; Dithiodianthranilic acid; 4-Carboxy-2-aminophenyl disulfide; DTBA; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 3,3'-Dithiobis(4-Aminobenzoic Acid) is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, to ensure it meets exacting standards for research and industrial use. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment and are available upon request.

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 light-sensitive nature and potential for oxidation, it is recommended to handle under an inert atmosphere for long-term storage of opened containers and to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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