Structural Formula Vector Image
Title: Corybulbine
CAS Registry Number: 518-77-4
CAS Name: 5,8,13,13a-Tetrahydro-2,9,10-trimethoxy-13-methyl-6H-dibenzo[a,g]quinolizin-3-ol
Additional Names: 2,9,10-trimethoxy-13-methyl-13a-berbin-3-ol; 3-hydroxy-13-methyl-2,9,10-trimethoxyberbine
Trademarks: Corydalis-G
Molecular Formula: C21H25NO4
Molecular Weight: 355.43
Percent Composition: C 70.96%, H 7.09%, N 3.94%, O 18.01%
Literature References: In Corydalis cava (L.) Schweigg & Korte (C. tuberosa DC.); Fumariaceae: Freund, Josephi, Ann. 277, 1 (1893); in C. platycarpa Makino, Fumariaceae: Manske, Can. J. Res. 21B, 13 (1943). Structure: Späth, Dobrowsky, Ber. 58, 1274 (1925).
Properties: Needles from methanol, mp 242°. [a]D20 +303° (c = 1.4 in CHCl3). Unstable in light. Weakly basic. Sol in acetone, chloroform, hot benzene; sparingly sol in water, alc, ether.
Melting point: mp 242°
Optical Rotation: [a]D20 +303° (c = 1.4 in CHCl3)
Derivative Type: Hydrochloride
Molecular Formula: C21H25NO4.HCl
Molecular Weight: 391.89
Percent Composition: C 64.36%, H 6.69%, N 3.57%, O 16.33%, Cl 9.05%
Properties: Prisms, dec 245-250°.
Status: This monograph has been retired and is no longer subject to revision or update.

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