Silybin B

Names

[ Name ]:
Silybin B

[Synonym ]:
MFCD03225424
SILIBININ A
(2R,3R)-3,5,7-Trihydroxy-2-[(2R,3R)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydro-4H-chromen-4-one
EINECS 245-302-5
[2R-[2a,3b,6(2R*,3R*)]]-2-[2,3-Dihydro-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-1,4-benzodioxin-6-yl]-2,3-dihydro-3,5,7-trihydroxy-4H-1-benzopyran-4-one
Silibinin
Silybin
Silybum Substance E6
33X338MNE4
MFCD00872186
4H-1-Benzopyran-4-one, 2-[(2R,3R)-2,3-dihydro-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-1,4-benzodioxin-6-yl]-2,3-dihydro-3,5,7-trihydroxy-, (2R,3R)-
Dura-Silymarin

Biological Activity

[Description]:

Silybin B, a flavonolignan separated from Silybum marianum, has anti-tumor activity. Silybin B is the most potent antifibrillogenic and anti-oligomeric component of silymarin and proposes it as a promising anti Alzheimer’s disease drug candidate[1][2].

[Related Catalog]:

Research Areas >> Cancer

Research Areas >> Neurological Disease

[References]

[1]. An-Shen Lin, et al. Cancer Preventive Agents. 7. Antitumor-Promoting Effects of Seven Active Flavonolignans from Milk Thistle (Silybum marianum.) on Epstein-Barr Virus Activation, Pharmaceutical Biology, 45:10, 735-738.

[2]. Sciacca MFM, et al. Inhibition of Aβ Amyloid Growth and Toxicity by Silybins: The Crucial Role of Stereochemistry. ACS Chem Neurosci. 2017 Aug 16;8(8):1767-1778.

Chemical & Physical Properties

[ Density]:
1.5±0.1 g/cm3

[ Boiling Point ]:
793.0±60.0 °C at 760 mmHg

[ Melting Point ]:
158-160℃ (methanol water )

[ Molecular Formula ]:
C₂₅H₂₂O₁₀

[ Molecular Weight ]:
482.436

[ Flash Point ]:
274.5±26.4 °C

[ Exact Mass ]:
482.121307

[ LogP ]:
2.59

[ Vapour Pressure ]:
0.0±2.9 mmHg at 25°C

[ Index of Refraction ]:
1.684

[ Storage condition ]:
2-8°C

Safety Information

[ RIDADR ]:
NONH for all modes of transport

Articles

Identification of diet-derived constituents as potent inhibitors of intestinal glucuronidation.

Drug Metab. Dispos. 42(10) , 1675-83, (2014)

Drug-metabolizing enzymes within enterocytes constitute a key barrier to xenobiotic entry into the systemic circulation. Furanocoumarins in grapefruit juice are cornerstone examples of diet-derived xe...

Isolation and purification of diastereoisomeric flavonolignans from silymarin by binary-column recycling preparative high-performance liquid chromatography.

J. Sep. Sci. 37(17) , 2300-6, (2014)

Silymarin extracted from Silybum marianum (L.) Gaertn consists of a large number of flavonolignans, of which diastereoisomeric flavonolignans including silybin A and silybin B, and isosilybin A and is...