Description

(13S)-3-Methoxy-13-Methyl-11,12,13,16-Tetrahydro-17H-Cyclopenta[A]Phenanthren-17-One is a high-purity, chiral steroidal intermediate of significant importance in advanced pharmaceutical synthesis. Its defined stereochemistry and complex polycyclic structure make it a critical building block for the research and development of novel therapeutic agents. This compound is primarily sought by pharmaceutical R&D laboratories and fine chemical manufacturers engaged in producing steroids, hormone analogs, and other bioactive molecules.

Application

• Pharmaceutical Intermediate: A key chiral precursor in the synthesis of steroidal drugs and hormone-based therapeutics.
• Research & Development: Used in medicinal chemistry for the discovery and structure-activity relationship (SAR) studies of new chemical entities.
• Fine Chemical Synthesis: Serves as a specialized building block for constructing complex polycyclic frameworks in custom synthesis projects.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development and compound identification.

Basic Information

Product Name	(13S)-3-Methoxy-13-Methyl-11,12,13,16-Tetrahydro-17H-Cyclopenta[A]Phenanthren-17-One
CAS No.	56614-59-6
Molecular Formula	C19H22O2
Molecular Weight	282.38 g/mol
Synonyms	(13S)-3-Methoxy-13-methyl-11,12,13,16-tetrahydro-17H-cyclopenta[a]phenanthren-17-one; 13-Methyl-3-methoxy-gona-1,3,5(10),8,14-pentaen-17-one; 3-Methoxy-13-methyl-11,12,13,16-tetrahydro-17H-cyclopenta[a]phenanthren-17-one (13S)-; A steroidal ketone intermediate; Gona-1,3,5(10),8,14-pentaen-17-one, 13-methyl-3-methoxy-; (13S)-3-Methoxy-13-methyl-11,12,13,16-tetrahydrocyclopenta[a]phenanthren-17-one
EINECS	Contact for details

Quality Control

Our (13S)-3-Methoxy-13-Methyl-11,12,13,16-Tetrahydro-17H-Cyclopenta[A]Phenanthren-17-One is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure identity, potency, and consistency. Certificates of Analysis (COA) detailing all specifications and test results are provided and available upon request, supporting your regulatory and quality assurance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Chiral Purity (HPLC)	≥99.0%
Loss on Drying	≤0.5%
Residue on Ignition	≤0.1%
Heavy Metals	≤20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.