Description

(17R)-17-Hydroxy-13-Propyl-18,19-Dinorpregn-4-En-20-Yn-3-One CAS NO 1044-96-8 is a high-purity synthetic steroid intermediate of significant importance in pharmaceutical research and development. Its value lies in its role as a key building block for the synthesis of more complex, biologically active steroid derivatives. This compound is essential for researchers and manufacturers in the pharmaceutical industry, particularly those focused on developing novel therapeutic agents, reference standards, and active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the multi-step synthesis of advanced steroid-based active pharmaceutical ingredients (APIs).
• Research & Development: Used in medicinal chemistry for the discovery and optimization of new therapeutic compounds targeting hormone receptors.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development, validation, and impurity profiling.
• Process Chemistry: Utilized in scale-up and process optimization studies for the commercial manufacturing of steroid drugs.
• Biochemical Research: Applied in studies investigating steroid metabolism, receptor binding affinity, and structure-activity relationships (SAR).

Basic Information

Product Name	(17R)-17-Hydroxy-13-Propyl-18,19-Dinorpregn-4-En-20-Yn-3-One
CAS No.	1044-96-8
Molecular Formula	C23H32O2
Molecular Weight	340.50 g/mol
Synonyms	13-Propyl-17α-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one; 17α-Hydroxy-13-propyl-18,19-dinorpregn-4-en-20-yn-3-one; 13-Propyl-17-hydroxy-18,19-dinorpregn-4-en-20-yn-3-one; 17-Hydroxy-13-propyl-18,19-dinorpregn-4-en-20-yn-3-one; 13-Propyl-17α-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one; 17α-Hydroxy-13-propyl-18,19-dinor-17α-pregn-4-en-20-yn-3-one; 17-Hydroxy-13-propylgon-4-en-3,20-dione (obsolete); Contact for additional aliases.
EINECS	Contact for details

Quality Control

Our (17R)-17-Hydroxy-13-Propyl-18,19-Dinorpregn-4-En-20-Yn-3-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting the high standards required for pharmaceutical R&D and manufacturing. Certificates of Analysis (COA) with detailed specifications from methods including HPLC, IR, and NMR are provided to guarantee traceability and compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, open flame, and incompatible materials. For long-term storage, consider inert atmosphere conditions to ensure optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 1.0%
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.