Description

Carbamic Acid, (Methylenedi-4,1-Phenylene)Bis-,Dioctadecyl Ester is a high-molecular-weight organic compound belonging to the class of biscarbamate esters. This specialty chemical serves as a versatile intermediate and functional additive, valued for its ability to modify material properties and impart specific performance characteristics. It is primarily sought by manufacturers in the polymer, coatings, and specialty chemical industries for applications requiring thermal stability, lubrication, or controlled reactivity.

Application

• As a polymer additive and processing aid to improve flow characteristics and reduce friction during extrusion or molding.
• Functioning as a light stabilizer or antioxidant precursor in the formulation of plastics and synthetic fibers to enhance durability.
• Utilized as a key chemical intermediate in the synthesis of more complex specialty chemicals, including certain agrochemicals and pharmaceuticals.
• Acting as a lubricant and release agent in industrial manufacturing processes.
• Employed in coating formulations to modify surface properties and improve finish quality.
• Potential use as a compatibilizer in polymer blends and composite materials.

Basic Information

Product Name	Carbamic Acid, (Methylenedi-4,1-Phenylene)Bis-,Dioctadecyl Ester
CAS No.	43136-13-6
Molecular Formula	C57H96N2O4
Molecular Weight	873.4 g/mol
Synonyms	Dioctadecyl 4,4'-methylenebis(phenylcarbamate); Bis(octadecyl) 4,4'-methylenediphenyldicarbamate; 4,4'-Methylenebis(phenylcarbamic acid) dioctadecyl ester; MDI-based biscarbamate ester; Stearyl carbamate of methylenedianiline; Dioctadecyl MDA biscarbamate
EINECS	Contact for details

Quality Control

Our Carbamic Acid, (Methylenedi-4,1-Phenylene)Bis-,Dioctadecyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
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.