Description

2-(1-Methylethylidene)-5α-Cholestan-3-One 1,2-Ethanediyl Acetal is a high-purity, specialized steroidal intermediate with a protected ketone functional group. This compound is valued for its role as a critical building block in the synthesis of complex bioactive molecules, offering precise control over stereochemistry and reactivity. It is primarily required by pharmaceutical R&D laboratories and fine chemical manufacturers engaged in the development of steroid-based therapeutics and advanced chemical entities.

Application

• Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of novel steroid-based drugs and hormone analogs.
• Research & Development: Used in academic and industrial research for exploring new synthetic pathways and studying steroidal chemistry.
• Fine Chemical Synthesis: Serves as a building block for creating complex, high-value specialty chemicals with specific chiral configurations.
• Reference Standard: Can be utilized as an analytical standard for quality control and method development in steroid analysis.

Basic Information

Product Name	2-(1-Methylethylidene)-5α-Cholestan-3-One 1,2-Ethanediyl Acetal
CAS No.	54498-61-2
Molecular Formula	C₃₂H₅₄O₂
Molecular Weight	470.78 g/mol
Synonyms	5α-Cholestan-3-one, 2-(1-methylethylidene)-, 1,2-ethanediyl acetal; 2-Isopropylidene-5α-cholestan-3-one ethylene acetal; 5α-Cholestan-3-one ethylene ketal, 2-isopropylidene derivative; (5α)-2-(1-Methylethylidene)cholestan-3-one ethylene acetal; Steroid intermediate 54498-61-2; Cholestane derivative ethylene ketal
EINECS	Contact for details

Quality Control

Our 2-(1-Methylethylidene)-5α-Cholestan-3-One 1,2-Ethanediyl Acetal is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support cGMP standards for pharmaceutical applications.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.