2,3-Dehydrosilybin B

Name: 2,3-Dehydrosilybin B
Brand: Zemixal
SKU: ZX-036178

Reference StandardAvailable on request

Buy 2,3-Dehydrosilybin B (CAS 142796-24-5) from Zemixal: C25H20O10, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-036178.

Pack sizes

CAS number142796-24-5

FormulaC₂₅H₂₀O₁₀

Molar mass480.4 g/mol

Physical formSolid

HS code38229090

InChIKeyBVKQRAYKLBRNIK-RDPSFJRHSA-N

IUPAC name3,5,7-trihydroxy-2-[(2S,3S)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]chromen-4-one

About 2,3-Dehydrosilybin B

Zemixal lists 2,3-Dehydrosilybin B for laboratories that identify, quantify or control Silymarin and its related substances. For your records (Reference Standard), the material is defined by CAS 142796-24-5, formula C25H20O10 and molar mass 480.4 g/mol. It is handled as a solid.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Handling and storage

It carries the GHS signal word Warning (H302), so wear gloves and eye protection and work with good ventilation.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Silymarin

See every impurity, metabolite and related compound we list for this API.

Silymarin standards

Typical uses

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of 2,3-Dehydrosilybin B
Product name	2,3-Dehydrosilybin B
Catalogue number	ZX-036178
CAS number	142796-24-5
IUPAC name	3,5,7-trihydroxy-2-[(2S,3S)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]chromen-4-one
Molecular formula	C₂₅H₂₀O₁₀
Molar mass	480.4 g/mol
Exact mass	480.1056
Grade	Reference Standard
Physical form	Solid
XLogP3	3.1
H-bond donors / acceptors	5 / 10
Topological polar surface area	155 Å²
HS code	38229090
InChIKey	BVKQRAYKLBRNIK-RDPSFJRHSA-N
SMILES	COC1=C(C=CC(=C1)[C@H]2[C@@H](OC3=C(O2)C=C(C=C3)C4=C(C(=O)C5=C(C=C(C=C5O4)O)O)O)CO)O
PubChem CID	12051803

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Irritant or harmful

Signal word Warning

H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 2,3-Dehydrosilybin B
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 2,3-Dehydrosilybin B

Which CAS number identifies 2,3-Dehydrosilybin B?

2,3-Dehydrosilybin B is registered under CAS 142796-24-5. Our catalogue number for this item is ZX-036178.

What are the formula and molar mass of 2,3-Dehydrosilybin B?

For 2,3-Dehydrosilybin B, its formula is C25H20O10 and its molar mass is 480.4 g/mol. The systematic (IUPAC) name is 3,5,7-trihydroxy-2-[(2S,3S)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]chromen-4-one. InChIKey BVKQRAYKLBRNIK-RDPSFJRHSA-N lets you match it in any structure database.

How is 2,3-Dehydrosilybin B used in pharmaceutical QC?

2,3-Dehydrosilybin B is a characterised reference material linked to Silymarin. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for 2,3-Dehydrosilybin B?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with 2,3-Dehydrosilybin B?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship 2,3-Dehydrosilybin B to my country?

Yes. Because 2,3-Dehydrosilybin B is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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