Description

N,N'-(1,2-Ethenediyl)Bis(Carbamic Acid)Bis(p-Toluic)Dianhydride is a high-purity, specialized organic intermediate with a rigid, symmetrical molecular architecture. This compound matters for its role as a critical building block in the synthesis of advanced polymers and high-performance materials, where its precise structure imparts desirable thermal and mechanical properties. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for creating novel active ingredients and engineered resins.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Polymer Chemistry: Acts as a monomer or cross-linking agent for producing high-temperature resistant polyimides, polyamides, and other specialty polymers.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators.
• Material Science R&D: Employed in creating novel organic frameworks, coatings, and composites with enhanced performance characteristics.
• Liquid Crystal & Electronic Materials: A potential building block for charge-transport materials, photoactive compounds, and liquid crystal displays.
• Cross-linking Agent: Utilized to modify and improve the thermal stability and mechanical strength of various resin systems.

Basic Information

Product Name	N,N'-(1,2-Ethenediyl)Bis(Carbamic Acid)Bis(p-Toluic)Dianhydride
CAS No.	73909-19-0
Molecular Formula	C20H14N2O8
Molecular Weight	410.34 g/mol
Synonyms	1,2-Bis(4-carboxyphenylcarbamoyl)ethylene dianhydride; N,N'-Ethylenebis(4-carboxybenzamide) dianhydride; Bis(p-carboxyphenylcarbamoyl)ethylene dianhydride; Ethene-1,2-diyl bis(4-carboxybenzamide) dianhydride; 73909-19-0; 4,4'-(Ethylenedicarbamoyl)dibenzoic acid dianhydride; N,N'-Ethylenedi-4,1-phenylenebis(2,5-furandione)
EINECS	Contact for details

Quality Control

Our N,N'-(1,2-Ethenediyl)Bis(Carbamic Acid)Bis(p-Toluic)Dianhydride is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for advanced synthetic applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles 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). This product is hygroscopic (moisture-sensitive); ensure the container is sealed immediately after use to prevent degradation from atmospheric moisture.

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	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Single Impurity (HPLC)	≤ 0.5%

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