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Sennoside A Irritant laxative;mild MAO inhibitor

Catalog No.N1678
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10mM (in 1mL DMSO)
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In stock

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Sample solution is provided at 25 µL, 10mM.

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Chemical structure

Sennoside A

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Chemical Properties

Cas No. 81-27-6 SDF Download SDF
Chemical Name (9R)-9-[(9R)-2-carboxy-4-hydroxy-10-oxo-5-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-9H-anthracen-9-yl]-4-hydroxy-10-oxo-5-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-9H-anthracene-2-carboxylic acid
Canonical SMILES C1=CC2=C(C(=C1)OC3C(C(C(C(O3)CO)O)O)O)C(=O)C4=C(C2C5C6=C(C(=CC=C6)OC7C(C(C(C(O7)CO)O)O)O)C(=O)C8=C5C=C(C=C8O)C(=O)O)C=C(C=C4O)C(=O)O
Formula C42H38O20 M.Wt 862.74
Solubility >39.9mg/mL in DMSO Storage Store at -20°C
Shipping Condition Evaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.


IC50: N/A

Sennoside A is a dianthrone glycoside isolated from Rhei Rhizoma and senna leaf. Sennoside A and B have identical molecular weights and formulae. Sennosides were known as laxatives causing purgative actions through the biotransformation of rhein anthrone. Sennoside A was reported to have regionally differential effects on spontaneous contractions of colon.

In vitro: The gastroprotective activities of sennoside A was found to be due to the up-regulation of PGE2 and the inhibitions of H+/K+-ATPase activity. When measured the H+/K+-ATPase activities of sennoside A, the positive control exhibited inhibitions of 41.1% and 42.4% at 50 μM and 100 μM, whereas sennoside A showed dose-dependent inhibitions of 17.3% and 27.1% at 50 μM and 100 μM [1].

In vivo: In a rat model, sennoside A reduced gastric juice, total acidity and increased pH, indicating that proton pump inhibition reduces gastric acid secretion. Furthermore, sennoside A increased PGE2 in a concentration-dependent manner. Moreover, in the intestinal transporting and gastric emptying rate experiment, sennoside A was found to accelerate such GI motility. These results suggested sennoside A possessed significant gastroprotective activities and it might be useful for the gastric disease treatment [1].

Clinical trial: N/A

[1] In Young HwangandChoon Sik Jeong.  Gastroprotective Activities of Sennoside A and Sennoside B via the Up-Regulation of Prostaglandin E2and the Inhibition of H+/K+-ATPase Biomol Ther (Seoul). 2015 Sep; 23(5): 458–464.