Page last updated: 2024-11-12

isosilybin b

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth Market Indicators

Cross-References

ID SourceID
PubMed CID10885340
CHEMBL ID3542340
SCHEMBL ID20152108
MeSH IDM0514070

Synonyms (24)

Synonym
isosilybin b
isosilibinin b
142796-22-3
(2r,3r)-3,5,7-trihydroxy-2-[(2s,3s)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydrobenzo[1,4]dioxin-6-yl]-4-chromanone
unii-15eh97604r
silybin a2
4h-1-benzopyran-4-one, 2-((2s,3s)-2,3-dihydro-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-1,4-benzodioxin-6-yl)-2,3-dihydro-3,5,7-trihydroxy-, (2r,3r)-
15eh97604r ,
isosilybin b [mi]
isosilybin b (constituent of milk thistle) [dsc]
DTXSID80447055
CHEMBL3542340
isosilybin b, analytical standard
(2r,3r)-3,5,7-trihydroxy-2-[(2s,3s)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydrochromen-4-one
SCHEMBL20152108
CS-0101838
HY-N7045
Q27251722
(2r,3r)-3,5,7-trihydroxy-2-((2s,3s)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)chroman-4-one
bdbm50526628
isosilybin b (constituent of milk thistle)
E87190
AKOS040760488
FS-7229
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Protein Targets (1)

Inhibition Measurements

ProteinTaxonomyMeasurementAverageMin (ref.)Avg (ref.)Max (ref.)Bioassay(s)
Polyphenol oxidase 2Agaricus bisporusIC50 (µMol)12.35000.03403.987110.0000AID1603425; AID1603430
Polyphenol oxidase 2Agaricus bisporusKi8.20000.00063.28838.8900AID1603426; AID1603428; AID1603431; AID1603433
[prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023]

Other Measurements

ProteinTaxonomyMeasurementAverageMin (ref.)Avg (ref.)Max (ref.)Bioassay(s)
Polyphenol oxidase 2Agaricus bisporusKis16.60002.90005.33008.8500AID1603429; AID1603434
[prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023]

Bioassays (44)

Assay IDTitleYearJournalArticle
AID1603429Inhibition of monophenolase activity of mushroom tyrosinase assessed as inhibition constant for enzyme-substrate-inhibitor complex by measuring reduction in dopachrome formation using L-Tyrosine substrate by UV-Vis spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID462338Inhibition of theophylline-stimulated melanogenesis in mouse B16-4A5 cells after 72 hrs2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462363Effect on TRP2 mRNA expression in mouse B16-4A5 cells assessed as TRP2 mRNA/beta-actin mRNA expression ratio at 30 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462347Inhibition of mushroom tyrosinase at 30 uM2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID1603435Inhibition of monophenolase activity of mushroom tyrosinase assessed as increase in lag period of monophenolase for oxidation of L-tyrosine substrate at 0.5 to 16 uM by UV-Vis spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID462359Effect on TRP1 mRNA expression in mouse B16-4A5 cells assessed as TRP1 mRNA/beta-actin mRNA expression ratio at 30 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462333Inhibition of theophylline-stimulated melanogenesis in mouse B16-4A5 cells at 30 uM after 72 hrs2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID755112Cytotoxicity against human Huh7.5.1 cells after 72 hrs2013Bioorganic & medicinal chemistry, Jul-01, Volume: 21, Issue:13
Semisynthesis, cytotoxicity, antiviral activity, and drug interaction liability of 7-O-methylated analogues of flavonolignans from milk thistle.
AID1603428Inhibition of monophenolase activity of mushroom tyrosinase assessed as inhibition constant for free enzyme-inhibitor complex by measuring reduction in dopachrome formation using L-Tyrosine substrate by UV-Vis spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID462350Effect on tyrosinase mRNA expression in mouse B16-4A5 cells assessed as tyrosinase mRNA/beta-actin mRNA expression ratio at 3 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID1603434Inhibition of diphenolase activity of mushroom tyrosinase assessed as inhibition constant for enzyme-substrate-inhibitor complex by measuring reduction in dopachrome formation using L-DOPA substrate by UV-Vis spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID1603425Inhibition of monophenolase activity of mushroom tyrosinase assessed as reduction in dopachrome formation using L-Tyrosine substrate by UV-Vis spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID462346Inhibition of mushroom tyrosinase at 10 uM2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462356Effect on TRP1 mRNA expression in mouse B16-4A5 cells assessed as TRP1 mRNA/beta-actin mRNA expression ratio at 1 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID1603439Binding affinity to mushroom tyrosinase assessed as Stern-Volmer quenching constant by fluorescence spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID462342Toxicity in mouse B16-4A5 cells assessed as inhibition of cell proliferation at 30 uM in presence of 1 mM theophylline after 72 hrs by WST8 dye reduction assay2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID1603437Inhibition of monophenolase activity of mushroom tyrosinase assessed as reduction in steady state rate monophenolase activity for oxidation of L-tyrosine substrate at 0.5 to 16 uM by UV-Vis spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID1603430Inhibition of diphenolase activity of mushroom tyrosinase assessed as reduction in dopachrome formation using L-DOPA substrate by UV-Vis spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID1214759Inhibition of OATP1B3 (unknown origin) expressed in HEK293 cells assessed as reduction of [3H]estradiol-17beta-glucuronide uptake at 10 uM after 3 mins by beta-counting2013Drug metabolism and disposition: the biological fate of chemicals, May, Volume: 41, Issue:5
Interaction of silymarin flavonolignans with organic anion-transporting polypeptides.
AID1214760Inhibition of OATP2B1 (unknown origin) expressed in MDCK2 cells assessed as reduction of [3H]estrone-3-sulfate uptake at 10 uM after 3 mins by beta-counting2013Drug metabolism and disposition: the biological fate of chemicals, May, Volume: 41, Issue:5
Interaction of silymarin flavonolignans with organic anion-transporting polypeptides.
AID462353Effect on tyrosinase mRNA expression in mouse B16-4A5 cells assessed as tyrosinase mRNA/beta-actin mRNA expression ratio at 1 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462345Inhibition of mushroom tyrosinase at 3 uM2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID1603431Mixed type inhibition of diphenolase activity of mushroom tyrosinase assessed as reduction in dopachrome formation using L-DOPA substrate by UV-Vis spectrophotometry based Dixon plot analysis2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID462344Inhibition of mushroom tyrosinase at 1 uM2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462336Inhibition of theophylline-stimulated melanogenesis in mouse B16-4A5 cells at 1 uM after 72 hrs2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462357Effect on TRP1 mRNA expression in mouse B16-4A5 cells assessed as TRP1 mRNA/beta-actin mRNA expression ratio at 3 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462360Effect on TRP2 mRNA expression in mouse B16-4A5 cells assessed as TRP2 mRNA/beta-actin mRNA expression ratio at 1 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID1603433Inhibition of diphenolase activity of mushroom tyrosinase assessed as inhibition constant for free enzyme-inhibitor complex by measuring reduction in dopachrome formation using L-DOPA substrate by UV-Vis spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID462362Effect on TRP2 mRNA expression in mouse B16-4A5 cells assessed as TRP2 mRNA/beta-actin mRNA expression ratio at 10 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462335Inhibition of theophylline-stimulated melanogenesis in mouse B16-4A5 cells at 3 uM after 72 hrs2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462354Effect on tyrosinase mRNA expression in mouse B16-4A5 cells assessed as tyrosinase mRNA/beta-actin mRNA expression ratio at 10 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462361Effect on TRP2 mRNA expression in mouse B16-4A5 cells assessed as TRP2 mRNA/beta-actin mRNA expression ratio at 3 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID755106Inhibition of CYP2C9 in human liver microsomes using (S)-warfarin as substrate after 30 mins2013Bioorganic & medicinal chemistry, Jul-01, Volume: 21, Issue:13
Semisynthesis, cytotoxicity, antiviral activity, and drug interaction liability of 7-O-methylated analogues of flavonolignans from milk thistle.
AID462358Effect on TRP1 mRNA expression in mouse B16-4A5 cells assessed as TRP1 mRNA/beta-actin mRNA expression ratio at 10 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462334Inhibition of theophylline-stimulated melanogenesis in mouse B16-4A5 cells at 10 uM after 72 hrs2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID462348Inhibition of mushroom tyrosinase at 100 uM2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID755107Antiviral activity against HCV JFH-1 infected in human Huh7.5.1 cells assessed as viral core protein expression at 1.6 to 16.1 uM after 72 hrs by Western blot analysis2013Bioorganic & medicinal chemistry, Jul-01, Volume: 21, Issue:13
Semisynthesis, cytotoxicity, antiviral activity, and drug interaction liability of 7-O-methylated analogues of flavonolignans from milk thistle.
AID1603440Binding affinity to mushroom tyrosinase assessed as binding constant by fluorescence spectrophotometry2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID755105Inhibition of CYP3A4/5 in human intestinal microsomes using midazolam as substrate after 4 mins2013Bioorganic & medicinal chemistry, Jul-01, Volume: 21, Issue:13
Semisynthesis, cytotoxicity, antiviral activity, and drug interaction liability of 7-O-methylated analogues of flavonolignans from milk thistle.
AID462355Effect on tyrosinase mRNA expression in mouse B16-4A5 cells assessed as tyrosinase mRNA/beta-actin mRNA expression ratio at 30 uM in presence of 1 mM theophylline after 72 hrs by RT-PCR2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID1129260Agonist activity at human PPAR-gamma expressed in HEK293 cells at 30 ug/ml after 18 hrs by luciferase reporter gene assay relative to control2014Journal of natural products, Apr-25, Volume: 77, Issue:4
Identification of isosilybin a from milk thistle seeds as an agonist of peroxisome proliferator-activated receptor gamma.
AID462367Inhibition of mushroom tyrosinase assessed as inhibition of melanin production from dopachrome by autoxidation at 100 uM2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Melanogenesis inhibitors from the desert plant Anastatica hierochuntica in B16 melanoma cells.
AID1603426Mixed type inhibition of monophenolase activity of mushroom tyrosinase assessed as reduction in dopachrome formation using L-Tyrosine substrate by UV-Vis spectrophotometry based Dixon plot analysis2019Bioorganic & medicinal chemistry, 06-15, Volume: 27, Issue:12
Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle).
AID1214758Inhibition of OATP1B1 (unknown origin) expressed in HEK293 cells assessed as reduction of [3H]estradiol-17beta-glucuronide uptake at 10 uM after 3 mins by beta-counting2013Drug metabolism and disposition: the biological fate of chemicals, May, Volume: 41, Issue:5
Interaction of silymarin flavonolignans with organic anion-transporting polypeptides.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (5)

TimeframeStudies, This Drug (%)All Drugs %
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's0 (0.00)29.6817
2010's5 (100.00)24.3611
2020's0 (0.00)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 17.93

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be moderate demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index17.93 (24.57)
Research Supply Index1.79 (2.92)
Research Growth Index5.08 (4.65)
Search Engine Demand Index18.60 (26.88)
Search Engine Supply Index4.00 (0.95)

This Compound (17.93)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Reviews0 (0.00%)6.00%
Case Studies0 (0.00%)4.05%
Observational0 (0.00%)0.25%
Other5 (100.00%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]