Description

4α-Hydroxystanozolol is a key synthetic steroid derivative, primarily recognized as a major metabolite of the anabolic-androgenic steroid stanozolol. Its significance lies in its role as a critical reference standard and analytical marker for pharmaceutical research and forensic toxicology. This compound is essential for laboratories and manufacturers involved in anti-doping control, steroid metabolism studies, and the development of analytical methods for detecting anabolic agents in biological samples.

Application

• Pharmaceutical Reference Standard: Serves as a certified primary standard for the qualitative and quantitative analysis of stanozolol and its metabolites in drug testing and research.
• Anti-Doping Analysis: A critical component in method development and validation for sports drug testing laboratories to accurately detect stanozolol abuse.
• Metabolic Pathway Research: Used in in vitro and in vivo studies to investigate the biotransformation and pharmacokinetics of anabolic steroids.
• Forensic Toxicology: Employed as an analytical standard in forensic labs for the confirmation of anabolic steroid presence in human and animal specimens.
• Method Development & Validation: Essential for developing, calibrating, and verifying analytical techniques such as LC-MS/MS, GC-MS, and HPLC in regulatory and quality control settings.
• Veterinary Drug Residue Testing: Used in the analysis of food-producing animals to monitor for illegal use of growth-promoting agents.

Basic Information

Product Name	4α-Hydroxystanozolol
CAS No.	100356-20-5
Molecular Formula	C21H32N2O2
Molecular Weight	344.50 g/mol
Synonyms	4α-Hydroxystanozolol; 17β-Hydroxy-17α-methyl-4α,5α-androstano[3,2-c]pyrazol-4α-ol; Stanozolol 4α-Hydroxy Metabolite; 4α-Hydroxy-17α-methyl-5α-androstano[3,2-c]pyrazol-17β-ol; 4α-OH-Stanozolol; WIN 14833-4α-ol; 4α-Hydroxy WIN 14833
EINECS	Contact for details

Quality Control

Our 4α-Hydroxystanozolol is manufactured under strict quality management systems to ensure the highest standards of purity and consistency, suitable for use as a reference material. Each batch is subjected to comprehensive analytical testing, including identity confirmation by spectroscopic methods and purity assessment by chromatographic techniques. A detailed Certificate of Analysis (COA) is provided, documenting the exact specifications and test results for traceability and regulatory compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider desiccants or inert atmosphere conditions.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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