Alfacalcidol EP Impurity B

About Alfacalcidol EP Impurity B

Alfacalcidol EP Impurity B is a pharmacopeial impurity of Alfacalcidol carrying the CAS registry number 63181-13-5. With the molecular formula C27H44O2, it has a molar mass of 400.6 g/mol. Common synonyms include 1beta-Calcidol and A-Calcidol.

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. Good laboratory practice and suitable PPE are recommended during handling.

This Alfacalcidol 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.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Alfacalcidol EP Impurity B is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Alfacalcidol

View every impurity, metabolite and intermediate we list for Alfacalcidol.

Alfacalcidol impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Alfacalcidol EP Impurity B
Catalogue No.	VQ-021485
CAS Number	63181-13-5
IUPAC name	cis-(1R,3R,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol
Molecular formula	C₂₇H₄₄O₂
Molecular weight	400.6 g/mol
Exact mass	400.3341
Grade	Reference Standard
HSN code	38229090
InChIKey	OFHCOWSQAMBJIW-FLFCXVRSSA-N
SMILES	C[C@H](CCCC(C)C)[C@H]1CC[C@@H]\2[C@@]1(CCC/C2=C\C=C/3\C[C@H](C[C@H](C3=C)O)O)C
PubChem CID	5283720

Physical properties
Physical form	Solid
LogP (XLogP3)	6.8
H-bond donors / acceptors	2 / 2
TPSA	40.5 Å²
Synonyms	1beta-Calcidol, (5Z,7E)-(1R,3R)-9,10-seco-5,7,10(19)-cholestatriene-1,3-diol, (5Z,7E)-9,10-Secocholesta-5,7,10(19)-triene-1beta,3beta-diol, 9,10-Secocholesta-5,7,10(19)-triene-1,3-diol, (1beta,3beta,5Z,7E)-, A-Calcidol, 1beta-hydroxycholecalciferol, (1R,3R,5Z,7E)-9,10-Secocholesta-5,7,10-triene-1,3-diol

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 Alfacalcidol EP Impurity B?

The CAS Registry Number of Alfacalcidol EP Impurity B is 63181-13-5. It is also known as 1beta-Calcidol, (5Z,7E)-(1R,3R)-9,10-seco-5,7,10(19)-cholestatriene-1,3-diol, (5Z,7E)-9,10-Secocholesta-5,7,10(19)-triene-1beta,3beta-diol.

What is the molecular formula and molecular weight of Alfacalcidol EP Impurity B?

Alfacalcidol EP Impurity B has the molecular formula C27H44O2 and a molecular weight of 400.6 g/mol.

What is Alfacalcidol EP Impurity B used for?

Alfacalcidol EP Impurity B is supplied as a characterised reference material related to Alfacalcidol. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Alfacalcidol EP Impurity B can I order?

We supply Alfacalcidol EP Impurity B 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 Alfacalcidol EP Impurity B?

Yes. Every lot of Alfacalcidol EP Impurity B 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 Alfacalcidol EP Impurity B be shipped internationally?

Yes. We export Alfacalcidol EP Impurity B worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.