Product Name

  • Name

    5-Methoxy-isobenzofuran-1,3-dione

  • EINECS
  • CAS No. 28281-76-7
  • Article Data31
  • CAS DataBase
  • Density 1.407 g/cm3
  • Solubility
  • Melting Point 98-99 °C(Solv: acetic acid (64-19-7))
  • Formula C9H6O4
  • Boiling Point 348.574 °C at 760 mmHg
  • Molecular Weight 178.144
  • Flash Point 158.837 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 28281-76-7 (5-Methoxy-isobenzofuran-1,3-dione)
  • Hazard Symbols
  • Synonyms Phthalicanhydride, 4-methoxy- (6CI,8CI);4-Methoxyphthalic anhydride;5-Methoxyphthalic anhydride;
  • PSA 52.60000
  • LogP 1.00580

5-Methoxyisobenzofuran-1,3-dione Chemical Properties

The Molecular Structure of 1,3-Isobenzofurandione, 5-methoxy- (CAS NO.28281-76-7):

Empirical Formula: C9H6O4
Molecular Weight: 178.1415 
IUPAC: 5-methoxy-2-benzofuran-1,3-dione
Nominal Mass: 178 Da
Average Mass: 178.1415 Da
Monoisotopic Mass: 178.026609 Da 
Index of Refraction: 1.584
Molar Refractivity: 42.36 cm3
Molar Volume: 126.5 cm3 
Surface Tension: 53.1 dyne/cm
Density: 1.407 g/cm3
Flash Point: 158.9 °C
Enthalpy of Vaporization: 59.3 kJ/mol
Boiling Point: 348.6 °C at 760 mmHg
Vapour Pressure: 4.99E-05 mmHg at 25°C

5-Methoxyisobenzofuran-1,3-dione Specification

 1,3-Isobenzofurandione, 5-methoxy- (CAS NO.28281-76-7) is also called as 5-Methoxy-isobenzofuran-1,3-dione ; Methyl n-(diphenylmethylene)-l-serinate ; 5-Methoxy-2-benzofuran-1,3-dione .

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