Description

4,4'-Hexamethylenebis(1,1-Dimethylsemicarbazide) is a high-purity chemical intermediate belonging to the class of bis-semicarbazides. This compound is valued for its role as a specialized cross-linking agent and stabilizer in advanced polymer formulations. It is primarily sought by manufacturers in the polymer, specialty chemical, and pharmaceutical industries for applications requiring precise molecular control and enhanced material properties.

Application

• Polymer Cross-Linking Agent: Used in the synthesis and modification of polyurethanes, polyamides, and other specialty polymers to enhance thermal stability and mechanical strength.
• Stabilizer for Polyolefins: Functions as a processing and long-term heat stabilizer in polyethylene and polypropylene production.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Rubber Vulcanization Accelerator: Acts as a secondary accelerator in the vulcanization process for synthetic rubbers.
• Adhesive & Sealant Formulations: Imparts improved durability and resistance in high-performance adhesive systems.
• Coatings & Resins: Used in coatings to improve cross-link density, leading to better chemical and abrasion resistance.
• Research & Development: Employed in academic and industrial R&D for developing new materials and chemical processes.
• Photoresist Chemistry: Potential application in the electronics industry for advanced photoresist formulations.

Basic Information

Product Name	4,4'-Hexamethylenebis(1,1-Dimethylsemicarbazide)
CAS No.	69938-76-7
Molecular Formula	C12H28N6O2
Molecular Weight	288.39 g/mol
Synonyms	1,1'-(Hexane-1,6-diyl)bis(3,3-dimethylsemicarbazide); Hexamethylene Bis(1,1-Dimethylsemicarbazide); HMDSC; Bis(1,1-dimethylsemicarbazide) hexamethylene; N,N'-Hexamethylenebis(1,1-dimethylsemicarbazide); 1,6-Hexamethylenebis(1,1-dimethylsemicarbazide); Stabilizer HMDSC; Light stabilizer 69938-76-7
EINECS	Contact for details

Quality Control

Our 4,4'-Hexamethylenebis(1,1-Dimethylsemicarbazide) is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the highest standards of purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each 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 room temperature (15-25°C). Keep away from strong acids, strong bases, and oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption.

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	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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