Product Name: 4-Methoxy-3-pyrrolin-2-one (CAS NO.69778-83-2)

Molecular Formula: C₅H₇NO₂
Molecular Weight: 113.11g/mol
Mol File: 69778-83-2.mol
Appearance: white to yellow-beige crystals
Melting Point: 129-132 °C(lit.)
Boiling point: 349.6 °C at 760 mmHg
Flash Point: 165.2 °C
Density: 1.16 g/cm³
Index of Refraction: 1.495  Molar Refractivity: 28.33 cm³ 
Molar Volume: 97 cm³ 
Surface Tension: 36.3 dyne/cm
Enthalpy of Vaporization: 59.41 kJ/mol
Vapour Pressure: 4.65E-05 mmHg at 25°C
XLogP3-AA: -0.7
H-Bond Donor: 1
H-Bond Acceptor: 2
Structure Descriptors of 4-Methoxy-3-pyrrolin-2-one (CAS NO.69778-83-2):
  IUPAC Name: 3-methoxy-1,2-dihydropyrrol-5-one
  Canonical SMILES: COC1=CC(=O)NC1
  InChI: InChI=1S/C5H7NO2/c1-8-4-2-5(7)6-3-4/h2H,3H2,1H3,(H,6,7) 
  InChIKey: TXKQBYYDTLOLHA-UHFFFAOYSA-N
Product Categories: Building Blocks; Heterocyclic Building Blocks; Pyrrolines

Safety Information of 4-Methoxy-3-pyrrolin-2-one (CAS NO.69778-83-2):
Hazard Codes: Xi
Risk Statements: 36/37/38   
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3

 4-Methoxy-3-pyrrolin-2-one , its CAS NO. is 69778-83-2, the synonyms are 2H-Pyrrol-2-one, 1,5-dihydro-4-methoxy- ; 1H-2-Pyrrolone, 4-methoxy-2,5-dihydro ; 4-Methoxy-1,5-dihydro-2H-pyrrol-2-one .