Description

Stigmastan-7-One is a high-purity steroidal ketone compound, identified by CAS NO 55331-88-9. It serves as a critical pharmaceutical intermediate and a valuable reference standard for analytical and research purposes. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical, biotechnology, and fine chemical sectors seeking reliable, high-quality building blocks for synthesis.

Application

• Pharmaceutical Intermediate: A key synthetic precursor in the development of steroidal drugs and active pharmaceutical ingredients (APIs).
• Analytical Reference Standard: Used for method development, calibration, and quality control in HPLC, GC-MS, and other chromatographic analyses.
• Biochemical Research: Employed in metabolic studies, enzyme inhibition assays, and investigations into sterol biosynthesis pathways.
• Fine Chemical Synthesis: Serves as a specialized starting material for the synthesis of novel steroidal compounds with potential biological activity.
• Academic & Industrial R&D: Utilized in research laboratories for exploring new chemical entities and reaction mechanisms.

Basic Information

Product Name	Stigmastan-7-One
CAS No.	55331-88-9
Molecular Formula	C₂₉H₅₀O
Molecular Weight	414.71 g/mol
Synonyms	7-Oxostigmastane; Stigmastan-7-one; 5α-Stigmastan-7-one; (5α)-Stigmastan-7-one; 7-Ketostigmastane; 7-Oxo-5α-stigmastane; 7-Stigmastanone; 7-Oxo-5α-cholestane (related structure)
EINECS	Contact for details

Quality Control

Our Stigmastan-7-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

Storage

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

Specification

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