Reserpic Acid
Title: Reserpic Acid
CAS Registry Number: 83-60-3
CAS Name: (3b,16b,17a,18b,20a)-18-Hydroxy-11,17-dimethoxyyohimban-16-carboxylic acid
Additional Names: reserpinolic acid
Molecular Formula: C22H28N2O5
Molecular Weight: 400.47
Percent Composition: C 65.98%, H 7.05%, N 7.00%, O 19.98%
Literature References: Obtained by controlled alkaline hydrolysis of reserpine: Dorfman et al., Helv. Chim. Acta 37, 59 (1954); Schlittler, US 2824874 (1958).
Properties: Crystals from methanol, mp 241-243°.
Melting point: mp 241-243°
 
Derivative Type: Hydrochloride hemihydrate
Molecular Formula: C22H28N2O5.HCl.½H2O
Molecular Weight: 445.94
Percent Composition: C 59.25%, H 6.78%, N 6.28%, O 19.73%, Cl 7.95%
Properties: Crystals, mp 257-259°. [a]D23 -81°.
Melting point: mp 257-259°
Optical Rotation: [a]D23 -81°
 
Derivative Type: Methyl ester
Molecular Formula: C23H30N2O5
Molecular Weight: 414.49
Percent Composition: C 66.65%, H 7.30%, N 6.76%, O 19.30%
Properties: Needles from methanol, mp 235-240°. [a]D25 -106°.
Melting point: mp 235-240°
Optical Rotation: [a]D25 -106°
 
Derivative Type: Methyl ester hydrochloride
Properties: mp ~228°.
Melting point: mp ~228°

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