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CAS No 524-63-0 , Cinchonan-6',9-diol, (8a,9R)-

  • Name: Cinchonan-6',9-diol, (8a,9R)-
  • Synonyms: Desmethylquinine; O6'-Demethylquinine; O-Demethylquinine;Cupreine(6CI,7CI,8CI);Ultraquinine;Cinchonan-6',9-diol, (8a,9R)-;
  • CAS Registry Number:
  • Flash Point: 265°C
  • Boiling Point: 514.6°Cat760mmHg
  • Density: 1.28g/cm3
  • Refractive index: 1.677
  • Flash Point: 265°C
  • EINECS: 208-363-9
  • Molecular Weight: 0
  • InChI: InChI=1/C19H22N2O2/c1-2-12-11-21-8-6-13(12)9-18(21)19(23)15-5-7-20-17-4-3-14(22)10-16(15)17/h2-5,7,10,12-13,18-19,22-23H,1,6,8-9,11H2/t12-,13-,18+,19+/m0/s1
  • Molecular Formula: C19H22 N2 O2
  • Molecular Structure:CAS No:524-63-0 Cinchonan-6',9-diol, (8a,9R)-

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References of Cinchonan-6',9-diol, (8a,9R)-
Title: Cupreine
CAS Registry Number: 524-63-0
CAS Name: (8a,9R)-Cinchonan-6￠,9-diol
Synonyms: hydroxycinchonidine; ultraquinine
Molecular Formula: C19H22N2O2
Molecular Weight: 310.39
Percent Composition: C 73.52%, H 7.14%, N 9.03%, O 10.31%
Literature References: In bark and seeds of Remijia pedunculata Flueck., Rubiaceae. Isoln: Howard, Hodgkin, J. Chem. Soc. 41, 16 (1882). Separated from homoquinine by treatment with NaOH: Hesse, Ann. 230, 55 (1885). Reduction to hydrocupreine: Giemsa, Halberkann, Ber. 51, 1325 (1918). Conversion into cinchonidine: King, J. Chem. Soc. 1946, 523.
Properties: Monoclinic plates from alcohol, mp 202°. [a]D17 -176°, (methanol). pK1 6.57. Sol in alcohol, NaOH soln, but not in NH4OH. Sparingly sol in water, ether, chloroform, benzene, petr ether. The neutral salts give yellow aq solns; the acid salts remain colorless in aq soln.
Melting point: mp 202°
pKa: pK1 6.57
Optical Rotation: [a]D17 -176°
 
Derivative Type: Monomethyl ether see Quinine