Lynestrenol EP Impurity B

Name: Lynestrenol EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-038226

About Lynestrenol EP Impurity B

Lynestrenol EP Impurity B (CAS 58311-09-4) is a pharmacopeial impurity of Lynestrenol offered by Vaqora Chemicals. The compound has the formula C20H28O, corresponding to a molecular weight of 284.4 g/mol. It is also known as Lynestrenol - Impurity B or 19-Norpregn-4-en-20-yn-17-ol.

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. It carries the GHS signal word “Danger” with 3 hazard statements. Review the Safety Data Sheet before use.

Pharmaceutical QC and development laboratories use this impurity standard of Lynestrenol to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are 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

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

Industries

Related to Lynestrenol

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

Lynestrenol impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Lynestrenol EP Impurity B
Catalogue No.	VQ-038226
CAS Number	58311-09-4
IUPAC name	(8R,9S,10R,13S,14S,17S)-17-ethynyl-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol
Molecular formula	C₂₀H₂₈O
Molecular weight	284.4 g/mol
Exact mass	284.214
Grade	Reference Standard
HSN code	38229090
InChIKey	YNVGQYHLRCDXFQ-JBKQDOAHSA-N
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@]2(C#C)O)CCC4=CCCC[C@H]34
PubChem CID	5284486

Physical properties
Physical form	Solid
LogP (XLogP3)	4.5
H-bond donors / acceptors	1 / 1
TPSA	20.2 Å²
Synonyms	Lynestrenol - Impurity B, 19-Norpregn-4-en-20-yn-17-ol, Lynestrenol impurity B, 17-Epi Lynestrenol, 19-Norpregn-4-en-20-yn-17-ol, (17alpha)-, (17alpha)-17-ethynylestr-4-en-17-ol

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H341Suspected of causing genetic defects
H351Suspected of causing cancer

Precautionary statements: P203, P264, P270, P280, P301 + P317, P318, P330, 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 Lynestrenol EP Impurity B?

The CAS Registry Number of Lynestrenol EP Impurity B is 58311-09-4. It is also known as Lynestrenol - Impurity B, 19-Norpregn-4-en-20-yn-17-ol, Lynestrenol impurity B.

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

Lynestrenol EP Impurity B has the molecular formula C20H28O and a molecular weight of 284.4 g/mol. Its IUPAC name is (8R,9S,10R,13S,14S,17S)-17-ethynyl-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol.

What is Lynestrenol EP Impurity B used for?

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

We supply Lynestrenol 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 Lynestrenol EP Impurity B?

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

Yes. Lynestrenol EP Impurity B 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.