Monoethyl maleate
What is Monoethyl maleate, cas no. 3990-03-2,a producer telling you the result.
CAS NO. 3990-03-2
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To begin with, let us tell you what is the basic information of Monoethyl maleate CAS NO. 3990-03-2 ?
|
Flash Point |
109.6±16.1 °C |
Molecular Weight |
144.125 |
|
Density |
1.2±0.1 g/cm3 |
Boiling Point |
261.6±23.0 °C at 760 mmHg |
|
Molecular Formula |
C6H8O4 |
Melting Point |
N/A |
Like many stuff, it has many synonyms as follows
|
EINECS 223-635-7 |
|
2-Butenedioic acid, monoethyl ester, (2Z)- |
|
Monoethyl Maleate |
|
Maleic Acid Monoethyl Ester |
|
Irsogladine Impurity 4 |
| (2Z)-4-Ethoxy-4-oxobut-2-enoic acid |
The chemical is very special
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Ecological data
It is usually not harmful to water, and materials should not be discharged into the surrounding environment without government permission.
Molecular structure data
1. Molar refractive index: 33.24
2. Molar volume (cm3/mol): 119.2
3. Isometric volume (90.2K): 304.5
4. Surface tension (dyne/cm): 42.4
5. Dielectric constant: No available
6. Polarization rate (10-24cm3): 13.17
7. Single isotope mass: 144.042259Da
8. Nominal mass: 144Da
9. Average mass: 144.1253Da
Second, the Synthetic Route we will recommend is the most important for your reference?
First, synthesis line of Monoethyl maleate CAS NO. 3990-03-2 as follows
1. Synthesize monoethyl maleate through maleic anhydride and ethanol.
2. Synthesis of monoethyl maleate through diazoacetic acid ethyl ester
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Third, what is the usage of Monoethyl maleate CAS NO. 3990-03-2 ? pleas see below
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Used for the intermediates of pharmaceuticals and as an intermediate in organic synthesis
Besides Safety Information of Monoethyl maleate CAS NO. 3990-03-2 is also important when handling it
Hazard category code: 36/37/38
Safety instructions: 26-36/37/39
RTECS number: EM6538750
Customs code 2917 1900.90
What is the appearance of Monoethyl maleate CAS NO. 3990-03-2 8 ? Please see the picture of Monoethyl maleate CAS NO. 3990-03-2, below
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Specification of Monoethyl maleate CAS NO. 3990-03-2, is below
Apperance: light yellow oil liquid
Assay: 99 % min by GC
IR identity: conform
Water by KF:0.5% max.
Roman spectra picture of Monoethyl maleate CAS NO. 3990-03-2 is as follows,
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IR picture of Monoethyl maleate CAS NO. 3990-03-2 is as follows, |
Reference of Article cited for your reference below,
（1）
Synthetic Applications of the Products of Dynamic Kinetic Resolution of Alcohols
Publication Date: 2022
Publication Name: Science of Synthesis
（2）
Method for treating impurity salt in maleic acid ester/fumaric acid ester production
Publication Number: CN-114315582-B
Priority Date: 2022-03-14
Grant Date: 2022-06-17
（3）
Composition for forming electrode, electrode and secondary battery
Publication Number: WO-2023277055-A1
Priority Date: 2021-06-29
