Description

4-Androsten-3B-Ol-17-One is a key steroid intermediate with significant importance in organic synthesis. This compound is valued for its role as a versatile building block in the production of more complex steroid-based active pharmaceutical ingredients (APIs). It is primarily required by manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors for research and development as well as commercial synthesis.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of steroidal hormones and other therapeutic agents.
• Biochemical Research: Used as a reference standard or starting material in metabolic pathway studies and steroidogenesis research.
• Fine Chemical Synthesis: Serves as a versatile building block for creating custom steroid derivatives and specialty chemicals.
• API Development: Employed in the research and development of new active pharmaceutical ingredients targeting endocrine and metabolic disorders.

Basic Information

Product Name	4-Androsten-3B-Ol-17-One
CAS No.	571-44-8
Molecular Formula	C19H28O2
Molecular Weight	288.42 g/mol
Synonyms	Androstenediol; 5-Androstene-3β,17β-diol; 4-Androstene-3β,17β-diol; Androst-5-ene-3β,17β-diol; 3β,17β-Dihydroxyandrost-5-ene; Androst-5-ene-3β,17β-diol (3β,17β); 17β-Hydroxyandrost-5-en-3β-ol; Prasterone metabolite
EINECS	209-332-5

Quality Control

Our 4-Androsten-3B-Ol-17-One is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC and spectroscopic methods, to ensure high purity and consistent identity. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance needs.

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). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed to minimize exposure to atmospheric moisture and light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Maximum Impurity	≤ 0.5%

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