Pharmaceutical Materials

CAS Number: 32807-28-6

Molecular Formula: C5H7ClO3

Molecular Weight: 150.56 g/mol

Appearance: Colorless or slightly yellow liquid

Melting Point: 14-16°C

Boiling Point: 212-213°C

Use: Widely used as an intermediate in the synthesis of pharmaceuticals and agrochemicals.

 

Property	Details
Chemical Name	Methyl 4-chloro-3-oxo-butanoate
Other Names	4-Chloroacetylacetic acid methyl ester; γ-Chloroacetoacetic acid methyl ester; Methyl 4-chloroacetoacetate
CAS Number	598-55-0
Molecular Formula	C5H7ClO3
Molecular Weight	150.56 g/mol
Appearance	Colorless to pale yellow liquid
Boiling Point	190-192 ºC (lit.)
Density	1.245 g/mL at 25 ºC (lit.)
Refractive Index	1.442-1.444 (lit.)
Flash Point	73 ºC
Solubility	Soluble in organic solvents such as ethanol, ether, and acetone; Slightly soluble in water
Stability	Stable under normal conditions; May decompose under heat or in the presence of strong acids or bases
Storage Conditions	Store in a cool, dry place, away from heat, sparks, and open flames; Keep container tightly closed and in a well-ventilated area
Usage	Used as an intermediate in the synthesis of pharmaceuticals, pesticides, and dyes; Important intermediate in the production of statin drugs, such as atorvastatin and simvastatin
Safety Information	May be harmful if swallowed or inhaled; Causes skin and eye irritation; May cause respiratory irritation; Keep away from sources of ignition; Store and handle with caution; Wear appropriate protective clothing and eye/face protection

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