Description

25-[(E)-Ethylidene]-27-Norstigmast-5-En-3β-Ol is a high-purity sterol derivative, a key intermediate in the synthesis of complex bioactive molecules. Its defined structure and high purity are critical for ensuring batch-to-batch consistency and predictable outcomes in advanced research and pharmaceutical development. This compound is essential for researchers and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors focused on steroid chemistry, drug discovery, and the development of novel therapeutic agents.

Application

• Pharmaceutical Intermediate: A crucial building block in the multi-step synthesis of novel steroid-based drugs and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a reference standard or precursor in metabolic pathway studies and steroid hormone research.
• Fine Chemical Synthesis: Serves as a specialized starting material for creating custom sterol derivatives with modified biological activity.
• Drug Discovery & Development: Employed in medicinal chemistry programs to explore structure-activity relationships (SAR) for new therapeutic candidates.
• Reference Standard: Utilized in analytical laboratories for method development and quality control testing of related steroidal compounds.

Basic Information

Product Name	25-[(E)-Ethylidene]-27-Norstigmast-5-En-3β-Ol
CAS No.	69081-87-4
Molecular Formula	C₂₉H₄₈O
Molecular Weight	412.70 g/mol
Synonyms	(3β)-25-[(1E)-Ethylidene]-27-norcholest-5-en-3-ol; 25-Ethylidene-27-norcholest-5-en-3β-ol; 25-Ethylidene-27-nor-5-cholesten-3β-ol; 25-(1-Ethylidene)-27-norcholest-5-en-3-ol; 25-Ethylidene-27-nor-cholest-5-ene-3β-ol; 25-Ethylidene-27-norstigmast-5-en-3β-ol; Sterol derivative 69081-87-4
EINECS	Contact for details

Quality Control

Our 25-[(E)-Ethylidene]-27-Norstigmast-5-En-3β-Ol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and conformity to customer specifications. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical quality attributes. Our commitment to cGMP principles and traceability ensures a reliable supply of high-purity material for sensitive applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). The compound is light-sensitive (store away from light) and should be handled under an inert atmosphere to prevent degradation. Keep the container tightly sealed in a dry environment to minimize exposure to moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.