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CAS No 90-33-5 , 7-hydroxy-4-methylchromen-2-one

  • Name: 7-hydroxy-4-methylchromen-2-one
  • Synonyms: Cholestil; Mendiaxon; beta-Methylumbelliferone; 7-HYDROXY-4-METHYLCOUMARIN;Hymecromone; Imecromone; Cantabiline;7-hydroxy-4-methylchromen-2-one; 90-33-5;
  • CAS Registry Number:
  • Melting Point: 186-191 ºC
  • Density: 1.319 g/cm3
  • Safety Statements: R20/21/22;R36/37/38
  • Hazard Symbols: Xn: Harmful;
  • EINECS: 201-986-7
  • Molecular Weight: 176.16872
  • InchiKey: HSHNITRMYYLLCV-UHFFFAOYSA-N
  • InChI: InChI=1S/C10H8O3/c1-6-4-10(12)13-9-5-7(11)2-3-8(6)9/h2-5,11H,1H3
  • Risk Statements: S26;S37/39
  • Molecular Formula: C10H8O3
  • Molecular Structure:CAS No:90-33-5 7-hydroxy-4-methylchromen-2-one

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References of 7-hydroxy-4-methylchromen-2-one
Title: Hymecromone
CAS Registry Number: 90-33-5
CAS Name: 7-Hydroxy-4-methyl-2H-1-benzopyran-2-one
Synonyms: 7-hydroxy-4-methylcoumarin; 7-hydroxy-4-methyl-2-oxo-3-chromene; 4-methylumbelliferone; b-methylumbelliferone; imecromone; 4-MU
Trademarks: Bilcolic (Unifa); Biliton H (Berlin-Chemie); Cantabilin (Formenti); Cantabiline; Cholonerton (Dolorgiet); Cholspasmin (Lipha); Cumarote C (Towa Yakuhin); Himecol (Kissei); Medilla (Omega); Mendiaxon (Roland)
Molecular Formula: C10H8O3
Molecular Weight: 176.17
Percent Composition: C 68.18%, H 4.58%, O 27.25%
Literature References: Prepd from resorcinol and ethyl acetoacetate: Pechmann, Duisberg, Ber. 16, 2119 (1883); Russell, Frye, Org. Synth. 21, 23 (1941); Woods, Sapp, J. Org. Chem. 27, 3703 (1962). Use in determn of nitric acid: F. J. Welcher, Organic Analytical Reagents vol. 1 (Van Nostrand, New York, 1947) pp 214-215.
Properties: Crystals from alc, mp 194-195° (Woods, Sapp), formerly reported as 185-186° (Pechmann, Duisberg). uv max (methanol): 221, 251, 322.5 nm. Blue fluorescence in alcohol + water. Sol in methanol, glacial acetic acid; slightly sol in ether, chloroform. Practically insol in cold water.
Melting point: mp 194-195° (Woods, Sapp)
Absorption maximum: uv max (methanol): 221, 251, 322.5 nm
Use: Analytical reagent.
Therap-Cat: Choleretic; antispasmodic.
Keywords: Antispasmodic; Choleretic.