Alpha-Cholestane

Name: Alpha-Cholestane
Brand: Vaqora Chemicals
SKU: VQ-043354

About Alpha-Cholestane

Listed under CAS 481-21-0, Alpha-Cholestane is an impurity of Sitosterol available from Vaqora Chemicals. Formula C27H48, molecular weight 372.7 g/mol. Alternative names: 5α-Cholestane and 5alpha-Cholestane.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Sitosterol, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Alpha-Cholestane in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Sitosterol

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

Sitosterol impurities

Specifications & identifiers

Chemical identifiers
Product name	Alpha-Cholestane
Catalogue No.	VQ-043354
CAS Number	481-21-0
IUPAC name	(5R,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene
Molecular formula	C₂₇H₄₈
Molecular weight	372.7 g/mol
Exact mass	372.3756
Grade	Reference Standard
HSN code	38229090
InChIKey	XIIAYQZJNBULGD-XWLABEFZSA-N
SMILES	C[C@H](CCCC(C)C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC[C@@H]4[C@@]3(CCCC4)C)C
PubChem CID	2723895

Physical properties
Physical form	Solid
LogP (XLogP3)	11.1
H-bond donors / acceptors	0 / 0
TPSA	0 Å²
Synonyms	5α-Cholestane, 5alpha-Cholestane, (5alpha)-Cholestane, 5-alpha-Cholestane, 28,29,30-Trinorlanostane, Cholestane, (5alpha)-, Cholestane, Cholestane (VAN), Cholestane, (5.alpha.)-, 5.alpha.-Cholestane

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 Alpha-Cholestane?

The CAS Registry Number of Alpha-Cholestane is 481-21-0. It is also known as 5α-Cholestane, 5alpha-Cholestane, (5alpha)-Cholestane.

What is the molecular formula and molecular weight of Alpha-Cholestane?

Alpha-Cholestane has the molecular formula C27H48 and a molecular weight of 372.7 g/mol. Its IUPAC name is (5R,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene.

What is Alpha-Cholestane used for?

Alpha-Cholestane is supplied as a characterised reference material related to Sitosterol. 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 Alpha-Cholestane can I order?

We supply Alpha-Cholestane 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 Alpha-Cholestane?

Yes. Every lot of Alpha-Cholestane 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 Alpha-Cholestane be shipped internationally?

Yes. We export Alpha-Cholestane worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.