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CAS No 95-01-2 , 2,4-dihydroxybenzaldehyde

  • Name: 2,4-dihydroxybenzaldehyde
  • Synonyms: Benzaldehyde; 2,4-dihydroxy-; beta-Resorcaldehyde;beta-Resorcylaldehyde;2,4-dihydroxybenzaldehyde; 4-Formylresorcinol; 95-01-2; 4-Hydroxysalicylaldehyde;
  • CAS Registry Number:
  • Transport: 25kgs
  • Melting Point: 133-138 ºC
  • Boiling Point: 220-228 ºC (22 MMHG)
  • Density: 1.409 g/cm3
  • Refractive index: 1.674
  • Safety Statements: R22;R36/37/38
  • Hazard Symbols: Xn: Harmful;
  • HS Code: 29124900
  • EINECS: 202-383-1
  • Molecular Weight: 138.12074
  • InchiKey: IUNJCFABHJZSKB-UHFFFAOYSA-N
  • InChI: InChI=1S/C7H6O3/c8-4-5-1-2-6(9)3-7(5)10/h1-4,9-10H
  • Risk Statements: S26;S37/39
  • Molecular Formula: C7H6O3
  • Molecular Structure:CAS No:95-01-2 2,4-dihydroxybenzaldehyde

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References of 2,4-dihydroxybenzaldehyde
Title: b-Resorcylaldehyde
CAS Registry Number: 95-01-2
CAS Name: 2,4-Dihydroxybenzaldehyde
Synonyms: 2,4-dihydroxybenzenecarbonal
Molecular Formula: C7H6O3
Molecular Weight: 138.12
Percent Composition: C 60.87%, H 4.38%, O 34.75%
Literature References: Prepd by saturating with HCl a soln of resorcinol and anhydr hydrocyanic acid in abs ether and boiling the precipitated resorcylaldimide-HCl with water: Gattermann, K?bner, Ber. 32, 278 (1899); DE 106508; Chem. Zentralbl. 1900, I, 742. By adding POCl3 to a soln of resorcinol and formanilide in ether, then boiling with dil NaOH, acidifying with H2SO4 and extracting with ether: Dimrath, Z?ppritz, Ber. 35, 995 (1902); by passing HCl into a mixture of resorcinol, ether, anhydr zinc chloride and cyanogen bromide, then boiling the precipitate with water: Karrer, Helv. Chim. Acta 2, 92 (1919).
Properties: Needles from water or ether + ligroin. mp 135-136°. bp22 226°. Freely sol in water, alcohol, ether, chloroform, glacial acetic acid. Difficultly sol in cold benzene. b-Resorcylaldehyde is easily dec by acids and alkalies. Prolonged exposure to moist air converts it to a brown, amorphous powder which is insol in ether.
Melting point: mp 135-136°
Boiling point: bp22 226°