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SML2581 Sigma-Aldrich

Silychristin

Milk Thistle component, ≥95% (HPLC)

Synonym: (2R,3R)-3,5,7-trihydroxy-2-[(2R,3S)-7-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydro-1-benzofuran-5-yl]-2,3-dihydrochromen-4-one, Silychristin, Silymarin II, silichristin

  • CAS Number 33889-69-9

  • Empirical Formula (Hill Notation) C25H22O10

  • Molecular Weight 482.44

  •  MDL number MFCD00883715

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Properties

assay   ≥95% (HPLC)
form   solid
solubility   ethanol: 5 mg/mL
storage temp.   2-8°C
SMILES string   COc1cc(ccc1O)[C@@H]2Oc3c(O)cc(cc3[C@H]2CO)[C@H]4Oc5cc(O)cc(O)c5C(=O)[C@@H]4O
InChI   1S/C25H22O10/c1-33-18-6-10(2-3-15(18)28)23-14(9-26)13-4-11(5-17(30)25(13)35-23)24-22(32)21(31)20-16(29)7-12(27)8-19(20)34-24/h2-8,14,22-24,26-30,32H,9H2,1H3/t14-,22+,23+,24-/m1/s1
InChI key   BMLIIPOXVWESJG-LMBCONBSSA-N

Description

General description

Silychristin is one of 3 flavonolignan isomers in Silymarin mixture, isolated from the fruits of Silybum Sarianum, also known as milk thistle. Silymarin is one of the most widely used phytochemicals due to its extensive therapeutic properties in ancient and modern times. Its hepatoprotective properties is very well established. It is known that Silymarin is an antioxidant and reduces free radical production. It inhibits toxin binding to hepatocytes and was shown to reduce liver injury caused by various agents such as acetaminophen, mycotoxins, bacterial toxins, alcohol and more. Various studies demonstrated protective effects of silymarin not only against hepatotoxic agents but also against nephrotoxic, cardiotoxic and neurotoxic agents. Furthermore, Silymarin was found to inhibit ROS formation and to protect pancreatic β-cells from oxidative stress mediated destruction. An inhibitory effect of silychristin (10-100μM) on the arachidonic acid metabolism by cyclooxygenase (COX) in blood platelets was discovered. This suggests Silychristin can serve as an antiplatelet and anti-inflammatory agent. Interestingly, Silychristin was also found to inhibit the thyroid hormone transporter (MCT8) with IC50 of approximately 100 nM in MDCK1 cells. This data indicate that Silychristin could block the uptake of thyroid hormone.

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
WGK Germany 
WGK 3
RTECS 
DJ2981780
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles
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