Description

4,4'-[Phenylenebis(Methylene)]Bis[1,1-Dimethylsemicarbazide] is a specialized organic compound belonging to the class of bis-semicarbazides. This chemical serves as a high-performance polymer stabilizer and antioxidant, crucial for enhancing the durability and lifespan of synthetic materials. It is primarily utilized by manufacturers in the plastics, rubber, and specialty coatings industries who require advanced solutions to prevent thermal and oxidative degradation.

Application

• Polymer Stabilizer: Acts as a highly effective antioxidant and heat stabilizer in polyolefins (e.g., PP, PE) and engineering plastics to prevent chain scission and discoloration during processing and end-use.
• Rubber Industry: Used in the formulation of synthetic rubbers and elastomers to protect against oxidative aging, maintaining flexibility and mechanical properties.
• Adhesives and Sealants: Incorporated into hot-melt and reactive adhesive systems to ensure long-term stability and performance under varying environmental conditions.
• Specialty Coatings: Enhances the weatherability and thermal resistance of industrial and protective coatings, including wire and cable coatings.
• Lubricant Additive: Functions as an antioxidant additive in synthetic lubricants and greases to extend service life by inhibiting oil degradation at high temperatures.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex stabilizers, pharmaceuticals, and agrochemicals.

Basic Information

Product Name	4,4'-[Phenylenebis(Methylene)]Bis[1,1-Dimethylsemicarbazide]
CAS No.	69911-58-6
Molecular Formula	C₁₆H₂₈N₆O₂
Molecular Weight	336.44 g/mol
Synonyms	1,1-Dimethyl-4,4'-(phenylenedimethylene)bis(semicarbazide); N,N'-Bis(1,1-dimethylsemicarbazidomethyl)-1,4-benzene; Bis(1,1-dimethylsemicarbazidomethyl)benzene; Phenylenebis(methylene)bis(1,1-dimethylsemicarbazide); Antioxidant 69911-58-6; Polymer Stabilizer 69911-58-6; Light Stabilizer DMSB
EINECS	Contact for details

Quality Control

Our production of 4,4'-[Phenylenebis(Methylene)]Bis[1,1-Dimethylsemicarbazide] adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC and FTIR, to ensure high purity and consistent performance. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles are available upon request to support your quality assurance and regulatory compliance needs.

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). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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