Introduction：Basic information about CAS 3990-03-2|(2Z)-4-Ethoxy-4-oxo-2-butenoic acid, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | (2Z)-4-Ethoxy-4-oxo-2-butenoic acid |
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| CAS Number | 3990-03-2 | Molecular Weight | 144.125 |
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| Density | 1.2±0.1 g/cm3 | Boiling Point | 261.6±23.0 °C at 760 mmHg |
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| Molecular Formula | C6H8O4 | Melting Point | / |
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| MSDS | / | Flash Point | 109.6±16.1 °C |
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Names
| Name | Ethyl Hydrogen Maleate |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 1.2±0.1 g/cm3 |
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| Boiling Point | 261.6±23.0 °C at 760 mmHg |
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| Molecular Formula | C6H8O4 |
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| Molecular Weight | 144.125 |
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| Flash Point | 109.6±16.1 °C |
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| Exact Mass | 144.042252 |
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| PSA | 63.60000 |
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| LogP | 0.29 |
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| Vapour Pressure | 0.0±1.1 mmHg at 25°C |
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| Index of Refraction | 1.469 |
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| InChIKey | XLYMOEINVGRTEX-ARJAWSKDSA-N |
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| SMILES | CCOC(=O)C=CC(=O)O |
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| Storage condition | Refrigerator |
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Safety Information
| Hazard Codes | Xn |
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| Risk Phrases | R36/37/38 |
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| Safety Phrases | S26;S36/S37/S39 |
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| RTECS | EM6538750 |
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Synonyms
| (2Z)-4-Ethoxy-4-oxo-2-butenoic acid |
| 2-Butenedioic acid, monoethyl ester, (2Z)- |
| Maleic Acid Monoethyl Ester |
| Monoethyl Maleate |
| EINECS 223-635-7 |
| (2Z)-4-Ethoxy-4-oxobut-2-enoic acid |
| 2-Butenedioic acid (Z), monoethyl ester |
| Irsogladine Impurity 4 |
