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CAS No 65666-07-1 , Silymarin

  • Name: Silymarin
  • Synonyms: 2-(2,3-Dihydro-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-1,4-benzodioxin-6-yl)-2,3-dihydro-3,5,7-trihydroxy-4H-1-benzopyran-4-one;Silymarin;
  • CAS Registry Number:
  • Flash Point: 274.4
  • Density: 1.527 g/cm3
  • Safety Statements: 22-24/25
  • Hazard Symbols: Xi :Irritant;
  • Flash Point: 274.4
  • EINECS: 245-302-5
  • Molecular Weight: 482.44
  • InChI: 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
  • Risk Statements: S26 :; S37/39 :;
  • Molecular Formula: C25H22O10
  • Molecular Structure:CAS No:65666-07-1 Silymarin

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References of Silymarin
Title: Silymarin
CAS Registry Number: 65666-07-1
Trademarks: Apihepar (Viatris); Laragon (Roemmers); Legalon (Madaus); Pluropon (Boehringer, Ing.); Silarine (Vir); Silepar (Ibirn); Silirex (Lampugnani); Silliver (Abbott); Silmar (Von Boch)
Literature References: Antihepatotoxic principle isolated from the seeds of the milk thistle, Silybum marianum (L.) Gaertn. (Carduus marianus L.). Comprised mainly of three isomers: silidianin, silicristin and the major component, silybin (formerly called silymarin). Characterized as a new class of substances, flavonolignans, almost certainly produced in the plant by a radical coupling of a flavonoid and coniferyl alcohol: H?nsel et al., Dtsch. Apoth. Ztg. 108, 1988 (1968). Isoln and chemistry: Wagner et al., Arzneim.-Forsch. 18, 688 (1968); 24, 466 (1974). Structural work: Janiak, H?nsel, Planta Med. 8, 71 (1960); H?nsel, Sch?pflin, Tetrahedron Lett. 1967, 3645; Pelter, H?nsel, ibid. 1968, 2911. Pharmacology and toxicology: Hahn et al., Arzneim.-Forsch. 18, 698 (1968); H. M. Rauen, H. Schriewer, ibid. 23, 148-170 (1973); Halbach, Trost, ibid. 24, 866 (1974).
 
Derivative Type: Silybin
CAS Registry Number: 22888-70-6
CAS Name: (2R,3R)-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-4H-1-benzopyran-4-one
Synonyms: silibinin; silybum substance E6; silymarin I
Molecular Formula: C25H22O10
Molecular Weight: 482.44
Percent Composition: C 62.24%, H 4.60%, O 33.16%
Literature References: Revised structure and synthetic studies: R. H?nsel et al., Chem. Commun. 1972, 195; eidem, Ber. 110, 3664 (1977). Total synthesis: L. Merlini et al., Chem. Commun. 1979, 695; eidem, J. Chem. Soc. Perkin Trans. 1 1980, 775.
Properties: Anhydrous subst, mp 158°, dec 180°. [a]D20 +11° (c = 0.25 in acetone + alcohol). uv max (methanol): 288 nm (log e 4.33). Sol in acetone, ethyl acetate, methanol, ethanol; sparingly sol in CHCl3. Practically insol in water. Also occurs as the monohydrate, crystals from acetone + petr ether, mp 167°, dec 180°; from methanol + water, mp 180°.
Melting point: mp 158°; mp 167°; mp 180°
Optical Rotation: [a]D20 +11° (c = 0.25 in acetone + alcohol)
Absorption maximum: uv max (methanol): 288 nm (log e 4.33)
 
Therap-Cat: Hepatoprotectant.
Keywords: Hepatoprotectant.