Diethyl maleate

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Solvent

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Detailed Introduction

Diethyl maleate, also known as diethyl fumarate, is a colorless, transparent liquid that is miscible with a wide range of organic solvents; it is partially soluble in benzene and chloroform, and at 30°C it dissolves to the extent of 1.4% in water, while water dissolves to the extent of 1.9% in diethyl maleate. It forms an azeotropic mixture with 88.2% water, with an azeotropic boiling point of 99.65°C. It is used as an intermediate in pesticide production, particularly for the synthesis of the organophosphorus pesticide malathion, and can also be employed in the manufacture of fragrances.

Chinese Name: Diethyl Maleate
Chinese aliases: Diethyl maleate; Dehydrated malic acid diethyl ester; Ethyl dehydrated malate
English name: Diethyl maleate
English aliases: Ethyl maleate; Maleic acid diethyl ester; cis-Propenoic acid diethyl ester; Diethyl malcate; diethyl but-2-enedioate; diethyl (2Z)-but-2-enedioate
Molecular formula: C8H12O4
Molecular weight: 172.18
CAS Number: 141-05-9
MDL Number: MFCD00009191
EINECS Number: 205-451-9
RTECS Number: ON1225000
BRN No.: 1100825
PubChem ID: 24882313

Properties and Stability
Stable under normal temperature and pressure. Incompatible with oxidizers, reducing agents, acids, and bases. May be flammable; exercise caution regarding ignition sources during use and storage. Avoid inhalation of vapors and contact with skin.
Storage Method
Store in a cool, dry, and well-ventilated place. Keep away from sources of ignition during use and storage.

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