Description

4-Fluoro-19-Nortestosterone is a synthetic fluorinated steroid derivative of 19-nortestosterone. This compound is valued for its role as a key pharmaceutical intermediate and a versatile building block in advanced organic synthesis. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors for the development of novel therapeutic agents and biochemical research.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of advanced steroid-based pharmaceuticals and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a reference standard or a molecular probe in endocrinology and metabolic pathway studies.
• Organic Synthesis: Serves as a specialized building block for creating complex fluorinated steroid analogs with modified biological activity.
• Reference Material: Employed in analytical laboratories for method development, calibration, and quality control testing.

Basic Information

Product Name	4-Fluoro-19-Nortestosterone
CAS No.	1881-31-8
Molecular Formula	C₁₈H₂₅FO₂
Molecular Weight	292.39 g/mol
Synonyms	4-Fluoro-19-nortestosterone; 4-Fluoro-19-norandrost-4-en-17β-ol-3-one; 4-Fluoroestr-4-en-17β-ol-3-one; 4-Fluoro-19-nor-17β-hydroxyandrost-4-en-3-one; Fluoxymesterone Impurity; 4-F-19-NT; 19-Nor-4-fluorotestosterone
EINECS	Contact for details

Quality Control

Our 4-Fluoro-19-Nortestosterone is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets high-purity standards suitable for research and synthesis. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). This product is light-sensitive and should be handled and stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.