Description

(±)-13-Ethyl-3-Methoxy-18,19-Dinor-17Alpha-Pregna-2,5(10)-Dien-20-Yn-17-Ol CAS NO 799-43-9 is a high-purity synthetic steroid intermediate of significant importance in pharmaceutical research and development. This compound serves as a critical building block for the synthesis of more complex steroidal molecules, enabling the exploration of novel therapeutic agents. It is primarily utilized by research institutions and pharmaceutical manufacturers focused on endocrinology, oncology, and metabolic disease research.

Application

• Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of novel steroidal drugs and active pharmaceutical ingredients (APIs).
• Research & Development: Used in academic and industrial laboratories for structure-activity relationship (SAR) studies and the development of new therapeutic candidates.
• Hormone Analog Synthesis: Serves as a foundational structure for creating analogs with potential activity in hormonal pathways.
• Reference Standard: Employed as a high-purity analytical standard for quality control and method development in analytical chemistry.
• Process Chemistry: Utilized in scaling up synthetic routes from laboratory to pilot plant and commercial manufacturing scales.

Basic Information

Product Name	(±)-13-Ethyl-3-Methoxy-18,19-Dinor-17Alpha-Pregna-2,5(10)-Dien-20-Yn-17-Ol
CAS No.	799-43-9
Molecular Formula	C24H32O2
Molecular Weight	352.51 g/mol
Synonyms	13-Ethyl-3-methoxy-18,19-dinor-17α-pregna-2,5(10)-dien-20-yn-17-ol; 13-Ethyl-3-methoxygona-2,5(10)-dien-17α-ethynyl-17β-ol; 17α-Ethynyl-13-ethyl-3-methoxygona-2,5(10)-dien-17β-ol; 3-Methoxy-13-ethyl-18,19-dinor-17α-pregna-2,5(10)-dien-20-yn-17-ol; (±)-13-Ethyl-3-methoxy-18,19-dinor-17α-pregna-2,5(10)-dien-20-yn-17-ol; NSC 689534; 799-43-9 (CAS Registry Number)
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. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications and test results are provided and available upon request to support your quality assurance protocols.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Maximum Impurity	≤ 0.5%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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