28371-16-6
Chemical Structure
Aloin B
Synonym(s): Isobarbaloin
- CAS No.: 28371-16-6
- Formula:C21H22O9
- Molecular Weight:418.39
IUPAC Name: (R)-1,8-dihydroxy-3-(hydroxymethyl)-10-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)anthracen-9(10H)-one
InChIKey: AFHJQYHRLPMKHU-WEZNYRQKSA-N
SMILES: O[C@H]([C@H]1O)[C@](O[C@H](CO)[C@H]1O)([H])[C@@](C2=CC=CC(O)=C23)([H])C(C=C(CO)C=C4O)=C4C3=O
Biological Activity: Aloin B (Isobarbaloin) is an orally active SARS-CoV-2 papain-like protease (PLpro) inhibitor with an IC50 of 16.08 μM (hydrolytic activity) and 17.51 μM (deubiquitinase activity). Aloin B is metabolized by rat intestinal flora into aloe-emodin-9-anthrone to exert laxative effects. Aloin B inhibits TPA (HY-18739)-induced ear edema, putrescine elevation, and tumor promotion in mouse skin. Aloin B can be used in research related to anti-inflammation, tumor promotion inhibition, coronavirus disease 2019 (COVID-19) and constipation[1][2][3].
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Aloin B | 99.15% | Aloin B (Isobarbaloin) is an orally active SARS-CoV-2 papain-like protease (PLpro) inhibitor with an IC50 of 16.08 μM (hydrolytic activity) and 17.51 μM (deubiquitinase activity). Aloin B is metabolized by rat intestinal flora into aloe-emodin-9-anthrone to exert laxative effects. Aloin B inhibits TPA (HY-18739)-induced ear edema, putrescine elevation, and tumor promotion in mouse skin. Aloin B can be used in research related to anti-inflammation, tumor promotion inhibition, coronavirus disease 2019 (COVID-19) and constipation. | ||||||||||||||||||||
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Aloin B (Standard) | ≥98% | Aloin B (Isobarbaloin) (Standard) is the analytical standard of Aloin B. This product is intended for research and analytical applications. Aloin B is an orally active SARS-CoV-2 papain-like protease (PLpro) inhibitor with an IC50 of 16.08 μM (hydrolytic activity) and 17.51 μM (deubiquitinase activity). Aloin B is metabolized by rat intestinal flora into aloe-emodin-9-anthrone to exert laxative effects. Aloin B inhibits TPA (HY-18739)-induced ear edema, putrescine elevation, and tumor promotion in mouse skin. Aloin B can be used in research related to anti-inflammation, tumor promotion inhibition, coronavirus disease 2019 (COVID-19) and constipation. | ||||||||||||||||||||
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References
- [1]. Ishii Y, et al. Studies of aloe. VI. Cathartic effect of isobarbaloin. Biol Pharm Bull. 1998;21(11):1226-1227. [Content Brief]
- [2]. Shimpo K, et al. Aloe arborescens extract inhibits TPA-induced ear oedema, putrescine increase and tumour promotion in mouse skin. Phytother Res. 2002;16(5):491-493. [Content Brief]
- [3]. Lewis DSM, et al. Aloin isoforms (A and B) selectively inhibits proteolytic and deubiquitinating activity of papain like protease (PLpro) of SARS-CoV-2 in vitro. Sci Rep. 2022;12(1):2145. Published 2022 Feb 9. [Content Brief]
