Pharmacopeial Impurities (EP / USP / BP)

Cholesterol EP Impurity B

Name: Cholesterol EP Impurity B
Brand: Zemixal
SKU: ZX-023927

Reference StandardAvailable on request

Buy Cholesterol EP Impurity B (CAS 313-04-2) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-023927.

Pack sizes

Cholesterol EP Impurity B chemical structure

CAS number313-04-2

FormulaC₂₇H₄₄O

Molar mass384.6 g/mol

Physical formSolid

HS code38229090

InChIKeyAVSXSVCZWQODGV-DPAQBDIFSA-N

IUPAC name(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylhept-5-en-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

About Cholesterol EP Impurity B

Zemixal lists Cholesterol EP Impurity B for laboratories that identify, quantify or control Cholesterol and its related substances. Key data (Reference Standard): CAS 313-04-2, formula C27H44O and molar mass 384.6 g/mol. It is handled as a solid.

Where it is used

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

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Cholesterol

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

Cholesterol standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Cholesterol EP Impurity B
Product name	Cholesterol EP Impurity B
Catalogue number	ZX-023927
CAS number	313-04-2
IUPAC name	(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylhept-5-en-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol
Molecular formula	C₂₇H₄₄O
Molar mass	384.6 g/mol
Exact mass	384.3392
Grade	Reference Standard
Physical form	Solid
XLogP3	8.3
H-bond donors / acceptors	1 / 1
Topological polar surface area	20.2 Å²
HS code	38229090
InChIKey	AVSXSVCZWQODGV-DPAQBDIFSA-N
SMILES	C[C@H](CCC=C(C)C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC=C4[C@@]3(CC[C@@H](C4)O)C)C
PubChem CID	439577
Synonyms	Cholesterol - Impurity B, 24-Dehydrocholesterol, desmesterol, cholest-5,24-dien-3beta-ol, Cholesta-5,24-dien-3-ol, (3beta)-, Demosterol, Cholesta-5,24-dien-3-ol, 3beta-cholesta-5,24-dien-3-ol, (3beta)-Cholesta-5,24-dien-3-ol, Cholesta-5,24-dien-3-ol, (3.beta.)-, 3b-Cholesta-5,24-dien-3-ol

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

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Cholesterol EP Impurity 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 Cholesterol EP Impurity B

Which CAS number identifies Cholesterol EP Impurity B?

Cholesterol EP Impurity B is registered under CAS 313-04-2. You may also see it listed as Cholesterol - Impurity B, 24-Dehydrocholesterol, desmesterol. Our catalogue number for this item is ZX-023927.

What are the formula and molar mass of Cholesterol EP Impurity B?

For Cholesterol EP Impurity B, its formula is C27H44O and its molar mass is 384.6 g/mol. The systematic (IUPAC) name is (3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylhept-5-en-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol. InChIKey AVSXSVCZWQODGV-DPAQBDIFSA-N lets you match it in any structure database.

How is Cholesterol EP Impurity B used in pharmaceutical QC?

Cholesterol EP Impurity B is a characterised reference material linked to Cholesterol. 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 Cholesterol EP Impurity 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 Cholesterol EP Impurity 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 Cholesterol EP Impurity B to my country?

Yes. Cholesterol EP Impurity B ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

More Cholesterol standards

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CAS: 15073-00-4
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MW: 400.7 g/mol

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Cholesterol EP Impurity A

CAS: 80-99-9
Formula: C₂₇H₄₆O
MW: 386.7 g/mol

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Formula: C₂₇H₄₄
MW: 368.6 g/mol

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24-Dehydrolathosterol

CAS: 17608-47-8
Formula: C₂₇H₄₄O
MW: 384.6 g/mol

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