Description

4,4'-Dda CAS NO 83-05-6 is a high-purity organic chemical intermediate, also known as 4,4'-Diaminodiphenylamine. This compound is valued for its role as a versatile building block in the synthesis of complex molecules, particularly in the production of dyes, pigments, and advanced polymers. It is essential for manufacturers in the specialty chemicals, polymer, and pharmaceutical industries seeking reliable and consistent raw materials for their synthesis processes.

Application

• Dye and Pigment Intermediate: A key precursor in the manufacturing of azo dyes and complex organic pigments.
• Polymer Industry: Used in the synthesis of polyimides and other high-performance polymers requiring aromatic diamines.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs) and other fine chemicals.
• Rubber Chemicals: Employed in the production of certain antioxidants and vulcanization accelerators.
• Research & Development: Utilized in academic and industrial R&D for novel material and compound development.
• Photographic Chemicals: Historically used in certain color-developing agents for photographic films.

Basic Information

Product Name	4,4'-Dda
CAS No.	83-05-6
Molecular Formula	C12H13N3
Molecular Weight	199.25 g/mol
Synonyms	4,4'-Diaminodiphenylamine; N-(4-Aminophenyl)-1,4-benzenediamine; p,p'-Diaminodiphenylamine; 4-Amino-4'-aminodiphenylamine; DADPA; CI 76050; 1,4-Benzenediamine, N-(4-aminophenyl)-
EINECS	201-457-8

Quality Control

Our 4,4'-Dda is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for industrial and research applications. Certificates of Analysis (COA) documenting purity, physical properties, and impurity profiles 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, well-ventilated area at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Brown to dark brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158 - 162 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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