Description

3β-Hydroxy-5,7,9-Estratrien-17-One is a high-purity steroid derivative, also known as 3β-Hydroxyestra-5,7,9-trien-17-one, with the CAS registry number 567-12-4. This compound serves as a critical advanced intermediate in the synthesis of complex steroid-based pharmaceuticals and research compounds. It is primarily utilized by pharmaceutical R&D laboratories, fine chemical manufacturers, and academic institutions engaged in steroid chemistry and hormone research.

Application

• Pharmaceutical Intermediate: A key building block in the multi-step synthesis of novel steroidal drugs and active pharmaceutical ingredients (APIs).
• Research & Development: Used as a reference standard and starting material in academic and industrial research exploring steroid metabolism, receptor binding, and biological activity.
• Fine Chemical Synthesis: Employed in the production of specialized steroid derivatives for high-value chemical applications.
• Biochemical Studies: Useful in studies investigating enzyme interactions and metabolic pathways involving modified estrogen structures.

Basic Information

Product Name	3β-Hydroxy-5,7,9-Estratrien-17-One
CAS No.	567-12-4
Molecular Formula	C₁₈H₂₂O₂
Molecular Weight	270.37 g/mol
Synonyms	3β-Hydroxyestra-5,7,9-trien-17-one; 5,7,9-Estratrien-3β-ol-17-one; NSC 121773; 17-Oxoestra-5,7,9-trien-3β-ol; 3β-Hydroxy-5,7,9-estratrien-17-one; Estra-5,7,9-triene-3β,17β-diol-17-one (tautomeric form)
EINECS	Contact for details

Quality Control

Our 3β-Hydroxy-5,7,9-Estratrien-17-One is manufactured under strict quality control protocols to ensure high chemical purity and batch-to-batch consistency. We provide comprehensive analytical documentation, including Certificates of Analysis (COA) detailing identity, purity, and impurity profiles via techniques such as HPLC, NMR, and IR spectroscopy. Our quality system is designed to meet the stringent requirements of research and pharmaceutical intermediate applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed in a dry environment and protected from light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
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.