Description

Benzenamine, 4,4'-[1,4-Phenylenebis(Thio)]Bis- (CAS No. 17619-11-3) is a specialized aromatic amine derivative featuring a central p-phenylene core linked via thioether bridges to terminal aniline groups. This unique molecular architecture makes it a valuable high-performance intermediate for synthesizing advanced polymers and functional materials. It is primarily sought by R&D chemists and production engineers in the polymer, specialty chemical, and advanced material manufacturing sectors.

Application

• Polymer Synthesis: Serves as a key monomer or chain extender in the production of high-performance polyamides, polyimides, and polyurea elastomers, imparting enhanced thermal stability and mechanical strength.
• Epoxy Curing Agent & Hardener: Functions as a curing agent for epoxy resin systems, contributing to improved chemical resistance and crosslink density in coatings, adhesives, and composite materials.
• Liquid Crystal Polymers (LCPs): Used as a building block in the synthesis of aromatic monomers for LCPs, which are critical for electronics, optical films, and high-temperature applications.
• Photoresist and Electronic Chemicals: Acts as a precursor in the development of photosensitive polymers and advanced photoresists for semiconductor manufacturing and microelectronics.
• Dye and Pigment Intermediate: Employed in the synthesis of complex organic dyes and pigments, particularly those requiring high thermal and chemical fastness.
• Pharmaceutical Intermediate: Utilized in research-scale synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules that incorporate diaryl sulfide motifs.
• Corrosion Inhibitor Formulation: Incorporated into specialty formulations for metal surface treatment and corrosion protection in aggressive environments.
• Adhesive and Sealant Formulation: Enhances the performance of high-strength, temperature-resistant adhesives and sealants used in aerospace and automotive industries.

Basic Information

Product Name	Benzenamine, 4,4'-[1,4-Phenylenebis(Thio)]Bis-
CAS No.	17619-11-3
Molecular Formula	C18H16N2S2
Molecular Weight	324.46 g/mol
Synonyms	4,4'-Thiobisbenzenamine; 4-Aminophenyl Disulfide; Bis(4-aminophenyl) Disulfide; 4,4'-Diaminodiphenyl Disulfide; p,p'-Diaminodiphenyl Disulfide; 1,4-Bis(4-aminophenylthio)benzene; 4,4'-(p-Phenylenedithio)dianiline; DADPS
EINECS	Contact for details

Quality Control

Our production of Benzenamine, 4,4'-[1,4-Phenylenebis(Thio)]Bis- adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support custom synthesis and can tailor purity grades (e.g., >98%, >99%) to meet specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This compound is light-sensitive (store away from light) and may be hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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