Description

13-Ethyl-3-Methoxy-18,19-Dinor-17Alpha-Pregna-2,5(10)-Dien-20-Yn-17-Ol is a high-purity steroid derivative of significant interest in advanced pharmaceutical research and development. This compound serves as a critical pharmaceutical intermediate for the synthesis of novel steroidal drugs, offering a versatile backbone for structural modifications. It is primarily sought by pharmaceutical manufacturers and contract research organizations (CROs) engaged in the development of hormone therapies and other specialized active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: A key building block in the multi-step synthesis of novel steroidal active pharmaceutical ingredients (APIs).
• Hormone Therapy Research: Used in R&D for developing new progestins, estrogens, and other hormone-related therapeutic agents.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in pharmaceutical laboratories.
• Chemical Synthesis: Utilized in organic and medicinal chemistry research to explore new chemical entities and structure-activity relationships (SAR).
• Biochemical Research: Employed in studies investigating steroid receptor binding and metabolic pathways.

Basic Information

Item	Details
Product Name	13-Ethyl-3-Methoxy-18,19-Dinor-17Alpha-Pregna-2,5(10)-Dien-20-Yn-17-Ol
CAS No.	14507-51-8
Molecular Formula	C23H30O2
Molecular Weight	338.49 g/mol
Synonyms	13-Ethyl-3-methoxy-18,19-dinor-17α-pregna-2,5(10)-dien-20-yn-17-ol; 17α-Ethynyl-13-ethyl-3-methoxygona-2,5(10)-dien-17-ol; Lynestrenol Impurity; 13-Ethyl-3-methoxy-18,19-bisnor-17α-pregna-2,5(10)-dien-20-yn-17-ol; 17α-Ethynyl-13-ethyl-3-methoxy-18,19-dinorpregna-2,5(10)-dien-17-ol; 13-Ethyl-3-methoxy-18,19-dinor-17α-pregna-2,5(10)-dien-20-yn-17-ol (Lynestrenol Related Compound)
EINECS	Contact for details

Quality Control

Our 13-Ethyl-3-Methoxy-18,19-Dinor-17Alpha-Pregna-2,5(10)-Dien-20-Yn-17-Ol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality commitment aligns with the standards expected for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption. For long-term storage, consider using desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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