Quinovin
Title: Quinovin
CAS Registry Number: 53516-73-7
Additional Names: Quinova-bitter; chinovin
Literature References: Isoln from cinchona bark (cortex chinae): Hlasiwetz, Ann. 111, 182 (1859); Liebermann, Giesel, Ber. 16, 926 (1883). A mixture of three glycosides, 60% A, 5% B and 30% C: Tschesche et al., Ann. 667, 151 (1963).
 
Derivative Type: Glycoside A
Additional Names: Quinovic acid b-D-quinovoside
Molecular Formula: C36H56O9
Molecular Weight: 632.82
Percent Composition: C 68.33%, H 8.92%, O 22.75%
Properties: Crystals from methanol + water, mp 237-238°. [a]D21 +57 ± 2° (ethanol).
Melting point: mp 237-238°
Optical Rotation: [a]D21 +57 ± 2° (ethanol)
 
Derivative Type: Glycoside B
Additional Names: Cincholic acid b-D-quinovoside
Molecular Formula: C36H56O9
Molecular Weight: 632.82
Percent Composition: C 68.33%, H 8.92%, O 22.75%
Properties: Crystals from methanol + water, mp 193-195°. [a]D19 +78 ± 3° (c = 0.78 in ethanol).
Melting point: mp 193-195°
Optical Rotation: [a]D19 +78 ± 3° (c = 0.78 in ethanol)
 
Derivative Type: Glycoside C
Additional Names: Quinovic acid b-D-glucoside
Molecular Formula: C36H56O10
Molecular Weight: 648.82
Percent Composition: C 66.64%, H 8.70%, O 24.66%
Properties: Crystals from methanol + water, mp 247-250°. [a]D20 +62 ±2° (ethanol).
Melting point: mp 247-250°
Optical Rotation: [a]D20 +62 ±2° (ethanol)

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