Description

5-Cholestene is a fundamental steroidal hydrocarbon, serving as a key intermediate and reference standard in advanced organic synthesis and biochemical research. Its well-defined structure makes it invaluable for studying cholesterol metabolism, membrane biophysics, and as a precursor for synthesizing more complex steroid derivatives. This high-purity compound is essential for pharmaceutical R&D, academic laboratories, and fine chemical manufacturers requiring a reliable building block for steroid-based active pharmaceutical ingredients (APIs) and other specialty chemicals.

Application

• Pharmaceutical Intermediate: Critical starting material or intermediate in the synthesis of steroid-based drugs, hormones, and vitamin D analogs.
• Biochemical Research: Used as a reference standard and probe in studies of cholesterol biosynthesis, metabolic pathways, and membrane structure/function.
• Fine Chemical Synthesis: A versatile building block for creating custom steroid derivatives, labeled compounds, and other specialty chemicals.
• Analytical Standard: Serves as a high-purity calibration standard in chromatographic (HPLC, GC) and spectroscopic analyses within quality control laboratories.
• Academic & Industrial R&D: Employed in discovery chemistry and material science research for developing new compounds with specific biological or physical properties.

Basic Information

Product Name	5-Cholestene
CAS No.	570-74-1
Molecular Formula	C₂₇H₄₆
Molecular Weight	370.66 g/mol
Synonyms	Cholest-5-ene; δ⁵-Cholestene; 5-Cholesten-3β-ol (deoxy derivative); NSC 18190; 3β-Cholest-5-ene (common name); (3β)-Cholest-5-ene (IUPAC); Cholesterol base structure
EINECS	209-327-5

Quality Control

Our 5-Cholestene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identity confirmation by FT-IR and NMR, and purity determination by HPLC or GC to ensure it meets stringent specifications for research and synthesis. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability, consistency, and compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC/GC)	≥ 98.0%
Melting Point	90 - 94 °C
Loss on Drying	≤ 0.5%

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