Appearance light yellow powder
Proton NMR spectrum Conforms to Structure
Melting point 150°C - 156°C
Purity ≥98.0% (HPLC)
solubility in ethanol conforms
Specific rotation [a]20/D　 -230°～ -240° (c=1, alcohol)
from Colchicum autumnale L. and Iphigenia indica Kunth et Benth
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