Molecular Structure of Methyl 4-(chloroformyl)butyrate (1501-26-4):

EINECS: 216-115-6
IUPAC Name: Methyl 5-chloro-5-oxopentanoate
Molecular Formula: C₆H₉ClO₃
Molecular Weight:  164.58686 g/mol
XLogP3: 1.3
H-Bond Donor: 0
H-Bond Acceptor: 3
Canonical SMILES: COC(=O)CCCC(=O)Cl
InChI: InChI=1S/C6H9ClO3/c1-10-6(9)4-2-3-5(7)8/h2-4H2,1H3
InChIKey: JCAZSWWHFJVFPP-UHFFFAOYSA-N
Index of Refraction: 1.436
Molar Refractivity: 36.49 cm³
Molar Volume: 139.5 cm³
Surface Tension: 34.8 dyne/cm
Density: 1.179 g/cm³
Flash Point: 82.2 °C
Boiling Point: 224 °C at 760 mmHg
Enthalpy of Vaporization: 46.05 kJ/mol
Vapour Pressure: 0.0932 mmHg at 25 °C
Water Solubility: 5.901e+004 mg/L at 25 °C
Refractive Index: n20/D 1.445(lit.)
Sorage Temp.: 2-8°C

Safety Information of Methyl 4-(chloroformyl)butyrate (1501-26-4):
Hazard Codes: C
Risk Statements: 34
34: Causes burns
Safety Statements: 26-36/37/39-45-24/25
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
24/25: Avoid contact with skin and eyes
RIDADR: UN 3265 8/PG 2
WGK Germany: 3
F: 10-21
HazardClass: 8
PackingGroup: II

  Methyl 4-(chloroformyl)butyrate (1501-26-4) is clear colourless to light yellow liquid, also known as Methyl glutaryl chloride ; Carbomethoxy butyryl chloride ; Methyl 4-chloroformylbutyrate ; Methyl 5-chloro-5-oxovalerate ; Pentanoic acid, 5-chloro-5-oxo-, methyl ester . It is often used as API intermediate.