Diethyl Maleate DEM CAS 141-05-9

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Diethyl maleate DEM CAS 141-05-9

Product Overview

Diethyl maleate (DEM) is a high-purity organic chemical compound widely applied in fine chemical synthesis, pharmaceutical intermediates, and industrial additive fields. This chemical carries CAS 141-05-9 with a molecular formula of C₈H₁₂O₄. It has completed REACH registration for EU market compliance, and reliable MSDS download service is available for global procurement and safety assessment.

Product Aliases

Maleic acid diethyl ester, Diethyl cis-butenedioate, Ethyl maleate

Product Specifications

Below is the standard industrial grade specification of Diethyl maleate for bulk import and industrial application:

Physical Properties & Characteristics

Diethyl maleate is a colorless to pale yellow transparent oily liquid with a mild characteristic fruity odor. It does not exist in powder, granular, flake or prill forms under normal temperature and pressure conditions. The product features stable physical properties under conventional storage environments.

Key physical parameters: Melting point -11.5°C, boiling point 225°C, density 1.064 g/mL (25°C), refractive index 1.441-1.444 (20°C), flash point 93°C. It is slightly soluble in water and fully miscible with ethanol, ether, and most organic solvents. This organic ester compound shows good stability at room temperature while prone to hydrolysis under strong alkaline conditions.

Product Applications

Diethyl maleate serves as a crucial intermediate and auxiliary agent in multiple industrial sectors. It is widely used for the synthesis of pharmaceuticals, pesticides, and fine chemical products. Additionally, it acts as a key raw material for polymer modifiers, resin crosslinking agents, and plastic additives. In the fragrance industry, it functions as a flavoring intermediate for synthetic essence production. Its stable chemical structure and excellent solubility also make it suitable for use in coating additives and organic synthesis auxiliary materials.

FAQ

1. What are the core compliance certifications of Diethyl maleate?

Diethyl maleate supports REACH registration to meet EU market access standards. Complete safety documents are provided, andMSDS download is accessible to support global trade, customs clearance and enterprise safety management.

2. What storage conditions are suitable for Diethyl maleate?

This product requires sealed storage in a cool, dry and ventilated warehouse, away from strong oxidants, strong acids and alkaline substances. Stable storage conditions can effectively avoid hydrolysis and component deterioration, ensuring long-term product quality stability.

3. What are the main downstream industries for Diethyl maleate procurement?

Bulk purchasers are mainly from fine chemical synthesis, pharmaceutical manufacturing, pesticide production, resin and polymer material processing, and daily fragrance industries. The product's high purity and stable quality meet large-scale industrial continuous production requirements.

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