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CAS 84604-20-6

CAS 84604-20-6 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 84604-20-6
CAS 84604-20-6PubChem CID 5213

Silymarin

3,5,7-trihydroxy-2-[3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-3,4-dihydro-2H-1-benzopyran-4-one is a flavonolignan. — ChEBI

IUPAC name
3,5,7-trihydroxy-2-[3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydrochromen-4-one
Molecular formula
C25H22O10
Molecular weight
482.4 g/mol
Exact mass
482.12129689 Da
XLogP3
2.4
Topological polar surface area
155.0 Ų
Hydrogen-bond donors
5
Hydrogen-bond acceptors
10
Covalent units
1
Defined stereocentres
0

Also known as

Silimarin3,5,7-trihydroxy-2-(3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl)-2,3-dihydrochromen-4-oneRefChem:931755613-830-9SilybinFlavobin Spofa(2S)-3,5,7-trihydroxy-2-[(2S,3R)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydrochromen-4-one(2R,3R)-3,5,7-trihydroxy-2-[(2R)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydrochromen-4-one
16 more reported names
Silymarin (>80%)Silibin3,5,7-trihydroxy-2-[3-(4-hydroxy-3-methoxy-phenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]chroman-4-one3,5,7-trihydroxy-2-[3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-3,4-dihydro-2H-1-benzopyran-4-one4H-1-Benzopyran-4-one,2-[2,3-dihydro-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-1,4-benzodioxin-6-yl]-2,3-dihydro-3,5,7-trihydroxy-SR-01000000093Silybin;Silibinin A;Silymarin ISilmyarinSilibinin BSilibinin, INN3,5,7-trihydroxy-2-[3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydro-4H-chromen-4-oneSilybin (7CI)Silybum substance E6Silybin(Mixture A&B)Silibinin (mixture of Silybin A and Silybin B)Silibinin (NSC 651520)
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External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 84604-20-6

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CAS 84604-20-6 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 84604-20-6 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.