Mitragynine
Title: Mitragynine
CAS Registry Number: 4098-40-2
CAS Name: (16E,20b)-16,17-Didehydro-9,17-dimethoxycorynan-16-carboxylic acid methyl ester
Additional Names: (E)-16,17-didehydro-9,17-dimethoxy-17,18-seco-20a-yohimban-16-carboxylic acid methyl ester; 9-methoxycorynantheidine
Molecular Formula: C23H30N2O4
Molecular Weight: 398.50
Percent Composition: C 69.32%, H 7.59%, N 7.03%, O 16.06%
Literature References: Major alkaloid of Mitragyna speciosa Korth., Rubiaceae: Field, J. Chem. Soc. 119, 887 (1921); Ing, Raison, ibid. 1939, 986. Structural studies: Hendrickson, Chem. Ind. (London) 1961, 713; Joshi et al., ibid. 1963, 573. Revised structure: Zacharias et al., Acta Crystallogr. 18, 1039 (1965). Pharmacology: Macko et al., Arch. Int. Pharmacodyn. Ther. 198, 145 (1972).
Properties: White, amorphous powder, mp 102-106°. bp5 230-240°. [a]D +39° (chloroform). uv max: 226, 292 nm (e 41,150, 6600). Soluble in alcohol, chloroform, acetic acid.
Melting point: mp 102-106°
Boiling point: bp5 230-240°
Optical Rotation: [a]D +39° (chloroform)
Absorption maximum: uv max: 226, 292 nm (e 41,150, 6600)

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