Description

20R 13(17)-Diacholestene is a high-purity steroidal intermediate of significant interest in advanced organic synthesis. This compound matters for its role as a versatile chiral building block, enabling the construction of complex molecular architectures with precise stereochemistry. Pharmaceutical R&D laboratories and fine chemical manufacturers need it for developing novel therapeutic agents, particularly in the steroid and hormone analog sectors. Its defined structure is critical for ensuring reproducibility and efficacy in downstream synthetic pathways.

Application

• Pharmaceutical Intermediate: Key chiral precursor in the synthesis of novel steroid-based therapeutics and hormone analogs.
• Research & Development: Used in academic and industrial R&D for studying steroidal metabolism, receptor interactions, and structure-activity relationships (SAR).
• Fine Chemical Synthesis: Serves as a specialized building block for creating complex, high-value organic molecules in contract manufacturing.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development and impurity profiling of steroidal compounds.

Basic Information

Product Name	20R 13(17)-Diacholestene
CAS No.	82079-08-1
Molecular Formula	C27H44
Molecular Weight	368.64 g/mol
Synonyms	20R-13(17)-Diacholestene; 13(17)-Diacholest-20R-ene; (20R)-13,17-Secoergosta-5,7,9(11),14-tetraene; 13,17-Secoergosta-5,7,9(11),14-tetraene, (20R)-; Steroidal Diene Intermediate; Diacholestene Derivative
EINECS	Contact for details

Quality Control

Our 20R 13(17)-Diacholestene is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods. Certificates of Analysis (COA) detailing all test results are available upon request to support your regulatory and quality assurance requirements.

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 each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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