Description

(9β)-17β-Hydroxyestr-4-En-3-One CAS NO 4374-03-2 is a high-purity steroid intermediate of significant importance in pharmaceutical research and development. This compound serves as a critical building block for the synthesis of more complex steroidal drugs and active pharmaceutical ingredients (APIs). It is primarily needed by manufacturers and R&D laboratories in the pharmaceutical, biotechnology, and fine chemical sectors for the production of therapeutic agents and reference standards.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of steroidal hormones and other active pharmaceutical ingredients (APIs).
• Research & Development: Used as a reference standard and building block in medicinal chemistry and drug discovery programs.
• Biochemical Research: Employed in studies of steroid metabolism, receptor binding, and endocrine system pathways.
• Fine Chemical Synthesis: Utilized in the multi-step synthesis of complex organic molecules for various industrial applications.

Basic Information

Product Name	(9β)-17β-Hydroxyestr-4-En-3-One
CAS No.	4374-03-2
Molecular Formula	C18H26O2
Molecular Weight	274.40 g/mol
Synonyms	9β-Hydroxy-17β-hydroxyestr-4-en-3-one; 9β,17β-Dihydroxyestr-4-en-3-one; 9β-Hydroxy-4-estrene-3,17β-diol; 9β-Hydroxy-17β-hydroxy-4-estren-3-one; 9β,17β-Dihydroxy-4-estren-3-one; 9β-Hydroxy-17β-hydroxyestra-4-en-3-one; 9β,17β-Dihydroxyestra-4-en-3-one
EINECS	Contact for details

Quality Control

Our (9β)-17β-Hydroxyestr-4-En-3-One is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to confirm identity and potency. Certificates of Analysis (COA) detailing all quality parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (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
Assay (HPLC)	≥98.0%
Loss on Drying	≤0.5%
Residue on Ignition	≤0.1%
Related Substances (HPLC)	Total impurities ≤2.0%

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