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Sennoside B

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Sennoside B Basic information
Sennoside B Chemical Properties
  • Melting point:209~212℃
  • alpha D20 -100° (c = 0.2 in 70% acetone); D20 -67° (c = 0.4 in 70% dioxane)
  • Boiling point:698.48°C (rough estimate)
  • Density 1.3066 (rough estimate)
  • refractive index 1.7630 (estimate)
  • storage temp. 2-8°C
  • form neat
  • pka3.31±0.40(Predicted)
  • BRN 5723747
  • CAS DataBase Reference128-57-4(CAS DataBase Reference)
Safety Information
  • Risk Statements 22
  • Safety Statements 22-45-24/25
  • WGK Germany 3
  • HS Code 29329990
Sennoside B Usage And Synthesis
  • Chemical PropertiesWhite to brown powder
  • DefinitionChEBI: A member of the class of sennosides that is (9R,9'S)-9,9',10,10'-tetrahydro-9,9'-bianthracene-2,2'-dicarboxylic acid which is substituted by hydroxy groups at positions 4 and 4', by beta-D glucopyranosyloxy groups at positions 5 and 5', and by oxo groups at positions 10 and 10'.
  • Purification MethodsSennoside B forms yellow crystals from aqueous acetone or large volumes of H2O. [Stoll et al. Helv Chim Acta 32 1896 1900, Beilstein 17 III/IV 3402.]
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