quebrachaminen.
/kᵻˈbrɑːtʃəmiːn/, /keɪˈbrɑːtʃəmiːn/, /kᵻˈbrɑːtʃəmɪn/, /keɪˈbrɑːtʃəmɪn/, U.S. /kəˈbrɑtʃəˌmin/, /keɪˈbrɑtʃəˌmin/, /kəˈbrɑtʃəmən/, /keɪˈbrɑtʃəmən/ Chemistry.
An alkaloid obtained from the bark of the white quebracho and from other trees of the genus Aspidosperma.Quebrachamine has a tetracyclic molecule containing indole and piperidine nuclei. Formula: C19H26N2.
ΚΠ
1882 Jrnl. Chem. Soc. 42 743 On further evaporation an amorphous residue remains, from which quebrachamine can be extracted.
1913 T. A. Henry Plant Alkaloids 370 Penzoldt..found that in frogs..hypoquebrachine and quebrachamine act on the central nervous system, producing paralysis of the motor nerves.
1994 Jrnl. Pharmaceut. Biomed. Anal. 12 1287/1 The α-adrenergic blocking activity of ‘Quebracho’ extract is likely related to the presence of..quebrachamine and yohimbine as well as other such inhibitors.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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n.1882- to keep market
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