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CAS No 574-84-5 , 7,8-dihydroxy-6-methoxychromen-2-one

  • Name: 7,8-dihydroxy-6-methoxychromen-2-one
  • Synonyms: 7,8-Dihydroxy-6-methoxycoumarin; 2H-1-Benzopyran-2-one; 574-84-5; 7,8-dihydroxy-6-methoxy-; 7,8-Dihydroxy-6-methoxy-2H-chromen-2-one;7,8-dihydroxy-6-methoxychromen-2-one;
  • CAS Registry Number:
  • Melting Point: 230-231 ºC
  • Flash Point: 196°C
  • Boiling Point: 472°Cat760mmHg
  • Density: 1.508g/cm3
  • Refractive index: 1.648
  • Safety Statements: R20/21/22;R36/37/38
  • Hazard Symbols: Xn: Harmful;
  • Flash Point: 196°C
  • EINECS: 209-376-2
  • Molecular Weight: 208.16752
  • InchiKey: HAVWRBANWNTOJX-UHFFFAOYSA-N
  • InChI: InChI=1S/C10H8O5/c1-14-6-4-5-2-3-7(11)15-10(5)9(13)8(6)12/h2-4,12-13H,
    1H3
  • Risk Statements: S26;S36
  • Molecular Formula: C10H8O5
  • Molecular Structure:CAS No:574-84-5 7,8-dihydroxy-6-methoxychromen-2-one

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574-84-5 FRAXETIN

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References of 7,8-dihydroxy-6-methoxychromen-2-one
Title: Fraxetin
CAS Registry Number: 574-84-5
CAS Name: 7,8-Dihydroxy-6-methoxy-2H-1-benzopyran-2-one
Synonyms: 7,8-dihydroxy-6-methoxycoumarin
Molecular Formula: C10H8O5
Molecular Weight: 208.17
Percent Composition: C 57.70%, H 3.87%, O 38.43%
Literature References: The aglucon of fraxin. Obtained by heating fraxin with dil H2SO4. Structure: Wessely, Demmer, Ber. 61, 1279 (1928). Synthesis: Aghoramurthy, Seshadri, J. Chem. Soc. 1954, 3065.
Properties: Plates from alc, mp 228°. Turns yellow at 150° and brown at mp. Sol in 10 liters cold water, in 300 ml boiling water; somewhat more sol in alcohol; hardly sol in ether.
Melting point: mp 228°
 
Derivative Type: Dimethyl ether
Synonyms: 6,7,8-Trimethoxycoumarin
Molecular Formula: C12H12O5
Molecular Weight: 236.22
Percent Composition: C 61.01%, H 5.12%, O 33.87%
Properties: Orthorhombic bipyramidal crystals, mp 104°. bp0.2 90-100°.
Melting point: mp 104°
Boiling point: bp0.2 90-100°