Description

4,4-Dimethyl-Delta(8)-Cholestenol is a high-purity sterol derivative characterized by its specific dimethylated structure at the 4-position and a double bond at the 8(9)-position. This compound serves as a valuable advanced intermediate and reference standard in the synthesis and research of complex steroid-based molecules. It is primarily utilized by pharmaceutical R&D laboratories, academic research institutions, and manufacturers of fine chemicals and active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: A key building block in the synthetic pathways for novel steroid-based therapeutics and drug candidates.
• Biochemical Research: Used as a reference standard and probe in studies of sterol biosynthesis, metabolism, and enzyme inhibition.
• Fine Chemical Synthesis: Serves as a precursor for the preparation of more complex, functionalized sterol derivatives with tailored biological activity.
• Academic & Industrial R&D: Employed in discovery chemistry for investigating structure-activity relationships (SAR) within the sterol chemical class.
• Analytical Standard: Provides a high-purity benchmark for analytical methods such as HPLC, GC-MS, and NMR in quality control and research settings.

Basic Information

Product Name	4,4-Dimethyl-Delta(8)-Cholestenol
CAS No.	7240-15-5
Molecular Formula	C₂₉H₅₀O
Molecular Weight	414.71 g/mol
Synonyms	4,4-Dimethyl-δ⁸-cholestenol; 4,4-Dimethylcholest-8-en-3β-ol; 3β-Hydroxy-4,4-dimethylcholest-8-ene; 4,4-Dimethyl-8-cholesten-3β-ol; δ⁸-Cholestene-3β-ol, 4,4-dimethyl-; 4,4-Dimethyl-δ⁸-cholesten-3β-ol
EINECS	Contact for details

Quality Control

Our 4,4-Dimethyl-Delta(8)-Cholestenol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by spectroscopic methods (NMR, IR), to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (typically 15-25°C). Keep the container tightly sealed in a dry environment to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%

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