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Ethyl 4-chloroacetoacetate (CAS 638-07-3) is a versatile β-keto ester compound with mf C6H9ClO3 and mw 164.59. It exists as a colorless to pale yellow transparent liquid at room temperature. Its chiral properties make it valuable for synthesizing chiral pharmaceuticals such as statins.
| Item | Specification |
| Melting point | -8°C |
| Boiling point | 115°C (14 mmHg) |
| Density | 1.218 g/mL at 25°C (lit.) |
| Vapor Pressure | 7 hPa at 20°C |
| Refractive Index | n20/D 1.452 (lit.) |
| Flash Point | 206°F |
| Acidity coefficient (pKa) | 9.56 ± 0.46 (Predicted) |
| Explosive limit | 1.8% (V) |
| Solubility | Freely soluble in organic solvents such as ethanol, diethyl ether, acetone, benzene, ethyl acetate; slightly soluble in water. |
Ethyl 4-chloroacetoacetate is used in the synthesis of antibacterial drugs/antiepileptic drugs/antihypertensive drugs and serves as a key intermediate in the synthesis of anti-tuberculosis drugs, antiviral drugs, antineoplastic drugs, etc.
Ethyl 4-chloroacetoacetate is used in the synthesis of herbicides/insecticides/fungicides, etc.
Ethyl 4-chloroacetoacetate is also employed in dye synthesis, fragrance synthesis, and as an organic synthesis reagent. Additionally, it serves as a crosslinking agent or functional monomer in polymer material synthesis.
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