Calcitriol EP impurity B

Name: Calcitriol EP impurity B
Brand: Vaqora Chemicals
SKU: VQ-021050

About Calcitriol EP impurity B

Calcitriol EP impurity B (CAS 66791-71-7) is a pharmacopeial impurity of Calcitriol offered by Vaqora Chemicals. The compound has the formula C27H44O3, corresponding to a molecular weight of 416.6 g/mol. It is also known as Calcitriol - Impurity B or 1beta-Calcitriol.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

This Calcitriol 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, Calcitriol 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 Calcitriol

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

Calcitriol impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Calcitriol EP impurity B
Catalogue No.	VQ-021050
CAS Number	66791-71-7
IUPAC name	cis-(1R,3R,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-1-[(2R)-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol
Molecular formula	C₂₇H₄₄O₃
Molecular weight	416.6 g/mol
Exact mass	416.329
Grade	Reference Standard
HSN code	38229090
InChIKey	GMRQFYUYWCNGIN-PEJFXWBPSA-N
SMILES	C[C@H](CCCC(C)(C)O)[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	5283741

Physical properties
Physical form	Solid
LogP (XLogP3)	5.1
H-bond donors / acceptors	3 / 3
TPSA	60.7 Å²
Synonyms	Calcitriol - Impurity B, 1beta-Calcitriol, 1-Epicalcitriol, 1beta,25-Dihydroxycholecalciferol, 9,10-Secocholesta-5,7,10(19)-triene-1,3,25-triol, (1beta,3beta,5Z,7E)-, Impurity B of Calcitriol, 1-epi-Calcitriol, NS 8, Epi-Calcitriol, (5Z,7E)-(1R,3R)-9,10-seco-5,7,10(19)-cholestatriene-1,3,25-triol

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 Calcitriol EP impurity B?

The CAS Registry Number of Calcitriol EP impurity B is 66791-71-7. It is also known as Calcitriol - Impurity B, 1beta-Calcitriol, 1-Epicalcitriol.

What is the molecular formula and molecular weight of Calcitriol EP impurity B?

Calcitriol EP impurity B has the molecular formula C27H44O3 and a molecular weight of 416.6 g/mol.

What is Calcitriol EP impurity B used for?

Calcitriol EP impurity B is supplied as a characterised reference material related to Calcitriol. 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 Calcitriol EP impurity B can I order?

We supply Calcitriol 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 Calcitriol EP impurity B?

Yes. Every lot of Calcitriol 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 Calcitriol EP impurity B be shipped internationally?

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