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CAS No 486-35-1 , 7,8-dihydroxychromen-2-one

  • Name: 7,8-dihydroxychromen-2-one
  • Synonyms: 7,8-Dihydroxy-2H-1-benzopyran-2-one; Daphnetol;7,8-Dihydroxycoumarin; 7,8-Dihydroxy-2H-chromen-2-one; CHEBI:17313;7,8-dihydroxychromen-2-one; 486-35-1;
  • CAS Registry Number:
  • Melting Point: 265-268°C (dec.)
  • Density: 1.563 g/cm3
  • Refractive index: 1.689
  • Safety Statements: S22;S24/25
  • Hazard Symbols: Xi
  • EINECS: 207-632-8
  • Molecular Weight: 178.14154
  • InchiKey: ATEFPOUAMCWAQS-UHFFFAOYSA-N
  • InChI: InChI=1S/C9H6O4/c10-6-3-1-5-2-4-7(11)13-9(5)8(6)12/h1-4,10,12H
  • Risk Statements: S22;S24/25
  • Molecular Formula: C9H6O4
  • Molecular Structure:CAS No:486-35-1 7,8-dihydroxychromen-2-one

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486-35-1 Daphnetin

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486-35-1 7,8-Dihydroxycoumarin

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486-35-1 Daphnetin

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References of 7,8-dihydroxychromen-2-one
Title: Daphnetin
CAS Registry Number: 486-35-1
CAS Name: 7,8-Dihydroxy-2H-1-benzopyran-2-one
Synonyms: 7,8-dihydroxycoumarin
Molecular Formula: C9H6O4
Molecular Weight: 178.14
Percent Composition: C 60.68%, H 3.39%, O 35.93%
Literature References: The aglucon of daphnin. By boiling daphnin with dil mineral acids; by enzymatic hydrolysis of daphnin; by sublimation from daphnin; by synthesis: v. Pechmann, Ber. 17, 934 (1884); Gatterman, K?bner, Ber. 32, 287 (1899); Baker, Savage, J. Chem. Soc. 1938, 1602; Sp?th, Galinovsky, Ber. 70B, 235 (1937); Sethna, Shah, Chem. Rev. 36, 1 (1945).
Properties: Crystals from dil alc, mp 256° (dec). Sublimes. Sol in boiling water, hot dil alcohol, hot glacial acetic acid; very sparingly sol in ether, in carbon bisulfide, in chloroform, in benzene. Sol in alkali and alkali carbonate solns giving a yellow color. Aq solns give a green color with ferric chloride which turns red on addition of sodium carbonate.
Melting point: mp 256° (dec)