54081-48-0

54081-48-0 structure

Name: Isoastilbin
Chemical Name: (2R,3S)-2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-4-oxo-3,4-dihydro-2 H-chromen-3-yl 6-deoxy-α-L-mannopyranoside
CAS Number: 54081-48-0
Molecular Formula: C₂₁H₂₂O₁₁
Molecular Weight: 450.393
Catalog: Natural product Flavonoids
Create Date: 2017-04-15 02:18:32
Modify Date: 2025-08-24 20:22:07
Isoastilbin is a dihydroflavonol glycoside compound in Rhizoma Smilacis glabrae and Astragalus membranaceus. Isoastilbin inhibits glucosyltransferase (GTase) with an IC50 value of 54.3 μg/mL, and also inhibits tyrosinase activity. Isoastilbin shows neuroprotective, antioxidation, antimicrobial and anti-apoptotic properties and has the potential for Alzheimer’s disease research[1][21][3].

Name	(2R,3S)-2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-4-oxo-3,4-dihydro-2 H-chromen-3-yl 6-deoxy-α-L-mannopyranoside
Synonyms	4H-1-Benzopyran-4-one, 3-[(6-deoxy-α-L-mannopyranosyl)oxy]-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-, (2R,3R)- Astilbin Dihydroquercetin 3-rhamnoside Taxifolin 3-rhamnoside 4H-1-Benzopyran-4-one, 3-((6-deoxy-α-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-, (2R,3R)- Taxifolin 3-rhamnoside Neoisoastilbin Astilbin (2R-trans)-3-((6-Deoxy-α-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-4H-1-benzopyran-4-one 4H-1-Benzopyran-4-one, 3-((6-deoxy-α-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-, (2R-trans)- Taxifolin 3-O-rhamnoside Astilbin from Engelhardtia roxburghiana (2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy-2,3-dihydrochromen-4-one (2R,3R)-2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-4-oxo-3,4-dihydro-2H-chromen-3-yl 6-deoxy-α-L-mannopyranoside Isoastilbin

Description	Isoastilbin is a dihydroflavonol glycoside compound in Rhizoma Smilacis glabrae and Astragalus membranaceus. Isoastilbin inhibits glucosyltransferase (GTase) with an IC50 value of 54.3 μg/mL, and also inhibits tyrosinase activity. Isoastilbin shows neuroprotective, antioxidation, antimicrobial and anti-apoptotic properties and has the potential for Alzheimer’s disease research[1][21][3].
Related Catalog	Research Areas >> Infection Signaling Pathways >> Metabolic Enzyme/Protease >> Tyrosinase Research Areas >> Neurological Disease Signaling Pathways >> Anti-infection >> Bacterial
Target	IC50: 54.3 μg/mL (Glucosyltransferase (GTase)[2]
References	[1]. Hong Yu, et al. Protective Roles of Isoastilbin Against Alz heimer's Disease via Nrf2-mediated Antioxidation and anti‑apoptosis. Int J Mol Med. 2019 Mar;43(3):1406-1416. [2]. Harlinda Kuspradini, et al. Antimicrobial activity against Streptococcus sobrinus and glucosyltransferase inhibitory activity of taxifolin and some flavanonol rhamnosides from kempas (Koompassia malaccensis) extracts. J. Wood Sci., 2009, 55(4):308-13. [3]. Batubara, Irmanida, et al. Anti-acne and Tyrosinase Inhibition Properties of Taxifolin and Some Flavanonol Rhamnosides from Kempas. Wood Research Journal ,2010, 1(1):45-9.

Hazard Codes	Xi