Description

3-Chlorostigmast-5-Ene CAS NO 33999-15-4 is a halogenated steroidal derivative of stigmastane, a key structural motif in phytosterols. This compound serves as a valuable chemical intermediate and research standard for the synthesis and study of more complex steroidal molecules. It is primarily utilized by pharmaceutical R&D teams and fine chemical manufacturers engaged in developing novel therapeutic agents and advanced organic materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel steroidal drugs and active pharmaceutical ingredients (APIs).
• Research Chemical: Used in academic and industrial laboratories for studying sterol metabolism, receptor binding, and structure-activity relationships (SAR).
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in chromatographic analysis (HPLC, GC).
• Fine Chemical Synthesis: An intermediate for creating specialized steroidal compounds used in agrochemicals, materials science, and cosmetics.
• Biochemical Probe: Utilized to investigate biological pathways involving cholesterol and plant sterols.

Basic Information

Product Name	3-Chlorostigmast-5-Ene
CAS No.	33999-15-4
Molecular Formula	C₂₉H₄₉Cl
Molecular Weight	433.16 g/mol
Synonyms	3-Chlorostigmast-5-ene; Stigmast-5-en-3β-ol, 3-chloro-; 3β-Chlorostigmast-5-ene; 3-Chloro-5-stigmastene; (3β)-Chlorostigmast-5-ene; 3-Chlorositosterol; 3-Chloro-δ⁵-stigmastene; Chlorinated stigmasterol derivative
EINECS	Contact for details

Quality Control

Our 3-Chlorostigmast-5-Ene is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR). We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or production specifications.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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