(8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-1… 178737-52-5

Name: (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one
Brand: Vaqora Chemicals
SKU: VQ-031537

About (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one

(8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one is a metabolite or degradation product of Levonorgestrel carrying the CAS registry number 178737-52-5. Its molecular formula is C21H28O2 and its molecular weight is 312.4 g/mol.

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.

Analytical teams use this compound to identify metabolites and degradants of Levonorgestrel, to validate stability-indicating methods (AMV) and to support QC and regulatory filings. 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

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Levonorgestrel

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

Levonorgestrel impurities

Specifications & identifiers

Chemical identifiers
Product name	(8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one
Catalogue No.	VQ-031537
CAS Number	178737-52-5
IUPAC name	(8R,9S,10R,13S,14S,17S)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one
Molecular formula	C₂₁H₂₈O₂
Molecular weight	312.4 g/mol
Exact mass	312.2089
Grade	Reference Standard
HSN code	38229090
InChIKey	WWYNJERNGUHSAO-ZUHHCLADSA-N
SMILES	CC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@]2(C#C)O)CCC4=CC(=O)CC[C@H]34
PubChem CID	12598302

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	1 / 2
TPSA	37.3 Å²

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 (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one?

The CAS Registry Number of (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one is 178737-52-5. It is also known as 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, rel-(17alpha)-13-Ethyl-17-hydroxy-18,19-dinorpregn-4-en-20-yn-3-one.

What is the molecular formula and molecular weight of (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one?

(8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one has the molecular formula C21H28O2 and a molecular weight of 312.4 g/mol. Its IUPAC name is (8R,9S,10R,13S,14S,17S)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one.

What is (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one used for?

(8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one is supplied as a characterised reference material related to Levonorgestrel. 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 (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one can I order?

We supply (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one 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 (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one?

Yes. Every lot of (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one 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 (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one be shipped internationally?

Yes. We export (8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.