English name: gelsemine; spiro[3, 5, 8-ethanylylidene-1h-pyrano[3, 4-c]pyridine-10, 3'-[3h]indol]-2'(1'h)-one, 5-ethenyl-3, 4, 4a, 5, 6, 7, 8, 8a-octahydro-7-methyl-, (3r, 3's, 4ar, 5s, 8s, 8as, 9s)-
Cas registry number: 509-15-9
Molecular formula: c20 h22 n2 o2
Molecular weight: 322.40
Purity: hplc more than 98%
Appearance: white neddle crystal powder
Solubility: soluble in benzene, chloroform, ethyl ether, ethanol and acetone, hardly soluble in water.
Melting point (experimental)value: 178 degrees centigrade
Boiling point (predicted)value: 493.4 more or less 45.0 degrees centigrade | condition: press: 760 torr
Density (predicted)value: 1.33 more or less 0.1 g/cm3 | condition: temp: 20 degrees centigrade press: 760 torr
Pka (predicted)value: 13.10 more or less 0.40 | condition: most acidic temp: 25 degrees centigrade
Botanic source: root of gelsemium elegans (gardn. Et champ.) benth.
Pharmacological effect: exciting central nervous, but poisonus.
Storage: 2-8 degrees centigrade, keep container tightly in a dry place, out of light.
