Silybin B (Silibinin B) is an amyloid-β aggregation inhibitor and ATR pathway activator that can cross the blood-brain barrier. Silybin B inhibits Aβ fibril formation and promotes amorphous aggregate formation, while activating the ATR-mediated DNA damage repair pathway and inhibiting JNK/p38 MAPK signaling. Silybin B can reduce Cisplatin-induced neuronal DNA damage and apoptosis. Silybin B has anti-oxidative stress, cell cycle regulation and neuroprotective activities. Silybin B is mainly used in the study of Alzheimer's disease and Cisplatin chemotherapy-related neurotoxicity.

Specifications

Synonyms

(2R, 3R)-3, 5, 7-trihydroxy-2-((2S, 3S)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2, 3-dihydrobenzo[b][1, 4]dioxin-6-yl)chroman-4-one | Silybin B, analytical standard | Q27269584 | AKOS015912848 | Legalon | (2R, 3R)-3, 5, 7-trihydroxy-2-[(2S, 3S)-3-(4-hydroxy

Specifications & Purity

Moligand™, ≥98%

Storage

Protected from light, Store at -20°C, Argon charged

Shipped In

Ice chest + Ice pads

This product requires cold chain shipping. Ground and other economy services are not available.

Grade

Moligand™

Action Type

INHIBITOR

Purity

≥98%

Names and Identifiers

Canonical Smiles	COC1=C(C=CC(=C1)C2C(OC3=C(O2)C=C(C=C3)C4C(C(=O)C5=C(C=C(C=C5O4)O)O)O)CO)O
IUPAC Name	(2R,3R)-3,5,7-trihydroxy-2-[(2S,3S)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydrochromen-4-one
InChIKey	SEBFKMXJBCUCAI-WAABAYLZSA-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
Isomeric SMILES	COC1=C(C=CC(=C1)[C@H]2[C@@H](OC3=C(O2)C=C(C=C3)[C@@H]4[C@H](C(=O)C5=C(C=C(C=C5O4)O)O)O)CO)O
PubChem CID	1548994
Molecular Weight	482.44

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Lignans, neolignans and related compounds
  - Class Flavonolignans

Kingdom	Organic compounds
Superclass	Lignans, neolignans and related compounds
Class	Flavonolignans
Subclass	Not available
Intermediate Tree Nodes	Not available
Direct Parent	Flavonolignans
Alternative Parents	3-hydroxyflavonoids 5-hydroxyflavonoids 7-hydroxyflavonoids Flavanonols Phenylbenzo-1,4-dioxanes Chromones Methoxyphenols Benzo-1,4-dioxanes Phenoxy compounds Anisoles Methoxybenzenes Aryl alkyl ketones 1-hydroxy-2-unsubstituted benzenoids 1-hydroxy-4-unsubstituted benzenoids Alkyl aryl ethers Para dioxins Vinylogous acids Secondary alcohols Oxacyclic compounds Polyols Organic oxides Primary alcohols Hydrocarbon derivatives
Molecular Framework	Aromatic heteropolycyclic compounds
Substituents	Flavonolignan - Hydroxyflavonoid - 3-hydroxyflavonoid - Flavanonol - Flavanone - 7-hydroxyflavonoid - 5-hydroxyflavonoid - Flavan - Phenylbenzodioxane - 2-phenylbenzo-1,4-dioxane - Chromone - 1-benzopyran - Methoxyphenol - Benzopyran - Chromane - Benzodioxane - Benzo-1,4-dioxane - Phenoxy compound - Anisole - Methoxybenzene - Aryl alkyl ketone - Aryl ketone - Phenol ether - Alkyl aryl ether - 1-hydroxy-2-unsubstituted benzenoid - Phenol - 1-hydroxy-4-unsubstituted benzenoid - Benzenoid - Para-dioxin - Monocyclic benzene moiety - Vinylogous acid - Secondary alcohol - Ketone - Polyol - Organoheterocyclic compound - Ether - Oxacycle - Alcohol - Organooxygen compound - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Primary alcohol - Aromatic heteropolycyclic compound
Description	This compound belongs to the class of organic compounds known as flavonolignans. These are non-conventional lignans that derived from flavonoids. They are characterized by a p-dioxin ring substituted at one carbon atom by a C3C6 (phenylpropan) group and fused to the B-ring of the 2-phenylchromene moiety.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

3D Structure

Associated Targets(Human)

SLCO2B1 Tchem Solute carrier organic anion transporter family member 2B1 (1 Activities)

Discover Target: SLCO2B1

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

TYR Tclin Tyrosinase (717 Activities)

Discover Target: TYR

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

PPARG Tclin Peroxisome proliferator-activated receptor gamma (15191 Activities)

Discover Target: PPARG

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CYP2C9 Tchem Cytochrome P450 2C9 (32119 Activities)

Discover Target: CYP2C9

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Homo sapiens (32628 Activities)

Sensitivity	light & Moisture & heat & air sensitive
Molecular Weight	482.400 g/mol
XLogP3	2.400
Hydrogen Bond Donor Count	5
Hydrogen Bond Acceptor Count	10
Rotatable Bond Count	4
Exact Mass	482.121 Da
Monoisotopic Mass	482.121 Da
Topological Polar Surface Area	155.000 Å²
Heavy Atom Count	35
Formal Charge	0
Complexity	750.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	4
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1

Silybin B (Silibinin B) - Moligand™,≥98% , CAS No.142797-34-0

Why this grade

Storage & shipping

Quality documents

Literature proof

Overview

Specifications

Documentation

📋 Safety Data Sheet (SDS)

✅ Certificate of Analysis (COA)

📊 Datasheet

🔬 Specification Sheet

Advanced Data

Molarity Calculator

Dilution Calculator

Reconstitution Calculator

Customer Reviews

Need help choosing the grade?

View related series

Related Products