Procyanidin B3

Name: Procyanidin B3
Brand: Vaqora Chemicals
SKU: VQ-041684

About Procyanidin B3

Procyanidin B3 is an API impurity reference standard carrying the CAS registry number 23567-23-9. The compound has the formula C30H26O12, corresponding to a molecular weight of 578.5 g/mol. Alternative names: Proanthocyanidin B3 and proanthocyanidin B-3.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

This the parent drug substance impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

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

Industries

Specifications & identifiers

Chemical identifiers
Product name	Procyanidin B3
Catalogue No.	VQ-041684
CAS Number	23567-23-9
IUPAC name	(2R,3S)-2-(3,4-dihydroxyphenyl)-8-[(2R,3S,4S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-3,4-dihydro-2H-chromene-3,5,7-triol
Molecular formula	C₃₀H₂₆O₁₂
Molecular weight	578.5 g/mol
Exact mass	578.1424
Grade	Reference Standard
HSN code	38229090
InChIKey	XFZJEEAOWLFHDH-AVFWISQGSA-N
SMILES	C1[C@@H]([C@H](OC2=C1C(=CC(=C2[C@H]3[C@@H]([C@H](OC4=CC(=CC(=C34)O)O)C5=CC(=C(C=C5)O)O)O)O)O)C6=CC(=C(C=C6)O)O)O
PubChem CID	146798

Physical properties
Physical form	Solid
LogP (XLogP3)	2.4
H-bond donors / acceptors	10 / 12
TPSA	221 Å²
Synonyms	Proanthocyanidin B3, proanthocyanidin B-3, catechin 4-8 catechin, catechin 4alpha-8 catechin, catechin-(4alpha->8)-catechin, Catechin(4a->8)catechin, 2,3-trans-proanthocyanidin, Catechin-(4.alpha.-->8)catechin, C-(4a,8)-C, (2R,2'R,3S,3'S,4S)-2,2'-Bis(3,4-dihydroxyphenyl)-[4,8'-bichromane]-3,3',5,5',7,7'-hexaol

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Procyanidin B3?

The CAS Registry Number of Procyanidin B3 is 23567-23-9. It is also known as Proanthocyanidin B3, proanthocyanidin B-3, catechin 4-8 catechin.

What is the molecular formula and molecular weight of Procyanidin B3?

Procyanidin B3 has the molecular formula C30H26O12 and a molecular weight of 578.5 g/mol. Its IUPAC name is (2R,3S)-2-(3,4-dihydroxyphenyl)-8-[(2R,3S,4S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-3,4-dihydro-2H-chromene-3,5,7-triol.

Which grade and pack sizes of Procyanidin B3 can I order?

We supply Procyanidin B3 in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Procyanidin B3?

Yes. Every lot of Procyanidin B3 is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Procyanidin B3 be shipped internationally?

Yes. Procyanidin B3 is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.