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CAS No 618-65-5 , Helicin

  • Name: Helicin
  • Synonyms: 2-(beta-D-Glucopyranosyloxy)benzaldehyde;Helicin;
  • CAS Registry Number:
  • Melting Point: 178 °C(lit.)
  • Flash Point: 212.5°C
  • Boiling Point: 552°C at 760 mmHg
  • Density: 1.51g/cm3
  • Refractive index: -62 ° (C=0.8, H2O)
  • Safety Statements: 24/25-36-26
  • Hazard Symbols: Xi
  • Flash Point: 212.5°C
  • EINECS: 210-558-9
  • Molecular Weight: 284.26
  • InChI: InChI=1/C13H16O7/c14-5-7-3-1-2-4-8(7)19-13-12(18)11(17)10(16)9(6-15)20-13/h1-5,9-13,15-18H,6H2/t9-,10-,11+,12-,13-/m1/s1
  • Risk Statements: 36/37/38
  • Molecular Formula: C13H16O7
  • Molecular Structure:CAS No:618-65-5 Helicin

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618-65-5 Helicin

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618-65-5 Helicin

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618-65-5 Helicin

  • HelicinSalicylaldehyde-beta-D-glucopyranoside; 2-(O-beta-D-Glucopyranosyloxy)benzaldehyde
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References of Helicin
Title: Helicin
CAS Registry Number: 618-65-5
CAS Name: 2-(b-D-Glucopyranosyloxy)benzaldehyde
Synonyms: salicylaldehyde b-D-glucoside
Molecular Formula: C13H16O7
Molecular Weight: 284.26
Percent Composition: C 54.93%, H 5.67%, O 39.40%
Literature References: Prepn by the oxidation of salicin with dil nitric acid: Schiff, Ann. 154, 19 (1870); from salicylaldehyde + O-tetraacetyl-a-glucosidyl bromide: Robertson, Waters, J. Chem. Soc. 1930, 2729. ORD and stereochemical studies: Tsuzuki et al., Bull. Chem. Soc. Jpn. 44, 526 (1971).
Properties: Needles with 0.75 mol H2O from H2O; mp 175-176° when dried at 100°. [a]D20 -60° (c = 1.4). One gram dissolves in 55 ml water; freely sol in hot water, alcohol. Forms compds with urea, thiourea, certain amino acids.
Melting point: mp 175-176° when dried at 100°
Optical Rotation: [a]D20 -60° (c = 1.4)
 
Derivative Type: Tetraacetate
Molecular Formula: C21H24O11
Molecular Weight: 452.41
Percent Composition: C 55.75%, H 5.35%, O 38.90%
Properties: Needles from alc, mp 142°. [a]D20 -37° (acetone).
Melting point: mp 142°
Optical Rotation: [a]D20 -37° (acetone)
 
NOTE: The same formula is ascribed to spirein, found in Spiraea camtschatica Pall. and in S. ulmaria L., Rosaceae. Emulsin hydrolyzes helicin and spirein, yielding D-glucose and salicylaldehyde.