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Merck
CN

S0417

Silibinin

≥98% (HPLC)

Synonym(s):

2,3-Dihydro-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-6-(3,5,7-trihydroxy-4-oxobenzopyran-2-yl)benzodioxin, Silybin

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About This Item

Empirical Formula (Hill Notation):
C25H22O10
CAS Number:
22888-70-6
Molecular Weight:
482.44
NACRES:
NA.83
PubChem Substance ID:
24899437
UNSPSC Code:
12352204
EC Number:
245-302-5
MDL number:
MFCD03225424

Key Documents

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Product Name

Silibinin, ≥98% (HPLC)

InChI key

SEBFKMXJBCUCAI-ILJKEPSESA-N

InChI

1S/C25H22O10/c1-32-17-6-11(2-4-14(17)28)24-20(10-26)33-16-5-3-12(7-18(16)34-24)25-23(31)22(30)21-15(29)8-13(27)9-19(21)35-25/h2-9,20,23-29,31H,10H2,1H3/t20-,23+,24-,25?/m0/s1

SMILES string

COc1cc(ccc1O)[C@@H]2Oc3cc(ccc3O[C@H]2CO)[C@H]4Oc5cc(O)cc(O)c5C(=O)[C@H]4O

assay

≥98% (HPLC)

storage temp.

−20°C

Quality Level

200

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Application

Silibinin has been used:
  • to study its effect on gene expression levels of various proteins involved in chromatin regulations of prostate cancer, by real time polymerase chain reaction (RT-PCR)
  • to study its effect on cell proliferation in platelet-derived growth factor (PDGF)-treated human tenon′s fibroblasts (HTFs) by investigating the expression of proliferating cell nuclear antigen (PCNA) and by water-soluble tetrazolium salt (WST-1) assay
  • to examine its effect on gene expression levels of stromelysine 1 (STM1), acetyl hexoseamines and collagen production during skin wound healing
  • to study its inhibitory effect on Escherichia coli ATP synthase

Biochem/physiol Actions

Silibinin functions as a hepatoprotectant in patients with acute and chronic liver injury. This flavonoid fights against various cancer cells including, prostate, skin, breast, colon, lung, bladder and hepatocellular carcinoma (HCC). Silibinin exhibits its efficacy as an anti-cancer agent by blocking the secretion of proangiogenic factors from tumor cells, and by hindering growth and inducing apoptotic death of endothelial cells. In addition, it also interrupts capillary tube formation on Matrigel. Silibinin might be a good candidate for chemoprevention of prostate cancer (PC). It might be used as a potential therapeutic regimen for the treatment of endometriosis in vitro and in vivo.

General description

Silibinin, a principal component of silymarin, is a flavonolignan and an orally active flavonoid. It is isolated from the seeds of milk thistle (Sylibum marianum L).

Other Notes

Contains both A and B diastereomers

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
WXBF7900V
WXBF5102V
WXBF3803S
WXBF3963V
BCCH7824

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Gagan Deep et al.
Cancer metastasis reviews, 29(3), 447-463 (2010-08-18)
Cancer is a major health problem around the world. Research efforts in the last few decades have been successful in providing better and effective treatments against both early stage and localized cancer, but clinical options against advanced metastatic stage/s of
Katharina Esser-Nobis et al.
Hepatology (Baltimore, Md.), 57(3), 953-963 (2013-01-17)
Intravenous silibinin (SIL) is an approved therapeutic that has recently been applied to patients with chronic hepatitis C, successfully clearing hepatitis C virus (HCV) infection in some patients even in monotherapy. Previous studies suggested multiple antiviral mechanisms of SIL; however
Chiu-Mei Lin et al.
Journal of agricultural and food chemistry, 60(51), 12451-12457 (2012-12-06)
Silibinin is a flavonoid with antihepatotoxic properties and pleiotropic anticancer capabilities. This study investigated silibinin inhibition of cell invasion by down-regulating matrix metalloproteinase-2 (MMP-2) expression, via attenuation of activator protein-1 (AP-1) in IL-6-stimulated LoVo colon cancer cells. Western blot data
Lei Li et al.
Expert opinion on investigational drugs, 19(2), 243-255 (2010-01-06)
Due to the failure and severe toxicity of cancer chemotherapy, silibinin, a natural flavonoid from the seeds of milk thistle, has recently received more attention for its potential anticancer and nontoxic roles in animals and humans. Silibinin has clearly demonstrated
Zoe Mariño et al.
Journal of hepatology, 58(3), 415-420 (2012-10-16)
Hepatitis C recurrence after liver transplantation (LT) is the main problem of most transplant programs. We aimed at assessing the antiviral activity and safety of intravenous silibinin (SIL) administered daily during the peri-transplant period. This was a single-centre, prospective, randomized
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