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A Treatise on Phytochemistry by Amrit Pal Singh

By Amrit Pal Singh

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Highly soluble in acetone and methanol. B. Moderately soluble in ether. Physical form: Yellow crystalline powder. Biological activity: Antiarrhymtic agent. c of the reagent. Nicotine Source: Nicotina tabaccum. Molecular formula: C6 H5 N O2. 12. Melting point: 236 deg C. 74: Structure of Nicotine Nitidine Source: Toddalia asiatica. Biological activity: Anti AIDS. 75: Structure of Nitidine Noscapine Source: Papaver somniferum. Molecular formula: C23 H23 N O7. 14. Melting point: 175-176 deg C. Solubility: A Soluble in chloroform.

Soluble in water, alcohol and chloroform. B. Insoluble in ether. Physical form: Strychnine is a colourless, odourless alkaloid having intense taste and occurs in prismatic crystals. Biological activity: Convulsant. 95: Structure of Strychnine Tephrosin Source: Tephrosia purpurea. Molecular formula: C23 H22 O7. 4. Melting point: 198 deg C. Biological activity: Antifeedent. 96: Structure of Tephrosin Theabine Source: Papaver somniferum. Molecular formula: C19 H21 NO 3. 41. Melting point: 193 deg C.

Physical form: Brown powder having peculiar odour. 54 : Structure of Huperzine Hydrastine Source: Hydrastis canadensis. Molecular formula: C21 H21 O6. 39. Melting point: 125-132 deg C. Solubility: A Soluble in chloroform. B. Slightly soluble in methanol and ethanol. C. Insoluble in water. Biological activity: The alkaloid has potent gabaergic antagonist activity. 55: Structure of Hydrastine Hygrine Source: Withania somnifera. Molecular weight: 225. Boiling point: 169. 57: Structure of Hygrine Hyoscine Source: Hyoscyamus niger.

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