

share
21-Fluoro-16-Ethyl-19-Norprogesterone CAS NO 25908-76-3
Unit Price:
CAS No.:25908-76-3
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
21-Fluoro-16-Ethyl-19-Norprogesterone is a synthetic steroid derivative, specifically a fluorinated and alkylated analog of progesterone. This compound is of significant interest in pharmaceutical research and development due to its potential as a high-affinity ligand for steroid hormone receptors, offering a platform for creating novel therapeutic agents. It is primarily utilized by research institutions and pharmaceutical companies engaged in the development of hormone-based therapies, diagnostic tools, and advanced biochemical studies.
Application
- Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel steroidal drugs targeting hormone-related conditions.
- Biochemical Research: Used as a reference standard or probe in studies investigating progesterone receptor (PR) binding affinity and function.
- Endocrinology Studies: Employed in preclinical research to explore the effects of fluorinated steroid analogs on metabolic and reproductive pathways.
- Drug Discovery: Acts as a core structure for medicinal chemistry programs aimed at developing new anti-inflammatory or hormonal agents with modified pharmacokinetic profiles.
- Academic Research: Utilized in university and institutional labs for advanced studies in organic synthesis and steroid chemistry.
Basic Information
| Product Name | 21-Fluoro-16-Ethyl-19-Norprogesterone |
| CAS No. | 25908-76-3 |
| Molecular Formula | C22H31FO2 |
| Molecular Weight | 346.48 g/mol |
| Synonyms | 16α-Ethyl-21-fluoro-19-norpregn-4-ene-3,20-dione; 21-Fluoro-16α-ethyl-19-norprogesterone; 16-Ethyl-21-fluoro-19-norprogesterone; 16α-Ethyl-21-fluoro-19-norpregn-4-en-3,20-dione; Fluoroethylnorprogesterone; 25908-76-3; 16-Ethyl-21-fluoro-19-norpregn-4-ene-3,20-dione |
| EINECS | Contact for details |
Quality Control
Our 21-Fluoro-16-Ethyl-19-Norprogesterone is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR, MS), to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) with detailed chromatographic data are provided to guarantee traceability and batch-to-batch consistency.
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 nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption. For long-term storage, consider using desiccants.
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% |
| Single Unknown Impurity (HPLC) | ≤ 0.5% |
| Total Impurities (HPLC) | ≤ 2.0% |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
Hot Related Products


Progesterone CAS NO 57-83-0


Promegestone CAS NO 34184-77-5


Premarin CAS NO 12126-59-9


Estratetraenol CAS NO 1150-90-9


Diethylstilbestrol Dipropionate CAS NO 130-80-3


Promethoestrol CAS NO 130-73-4


Diethylstilbestrol Dimethyl Ether CAS NO 130-79-0


Quinestrol CAS NO 152-43-2


Dydrogesterone CAS NO 152-62-5


(17R)-17-Hydroxy-13-Propyl-18,19-Dinorpregn-4-En-20-Yn-3-One CAS NO 1044-96-8


Anordiol CAS NO 1045-30-3


1,3,5(10), 9(11)-Estratetraen-3-Ol-17-One CAS NO 1089-80-1


Quinestradol CAS NO 1169-79-5


(8R,9S,10R,13S,14S,17S)-13,17-Diethyl-17-Hydroxy-1,2,6,7,8,9,10,11,12,14,15,16-Dodecahydrocyclopenta[A]Phenanthren-3-One CAS NO 1235-15-0


3,5(10)-Triene-3,16-Diol, (16.Beta.)-Estra-1 CAS NO 1225-58-7


Etynodiol CAS NO 1231-93-2


9,11-Dehydro Ethynyl Estradiol CAS NO 1231-96-5


17-Ethyl-17-Hydroxy-10,13-Dimethyl-2,6,7,8,9,11,12,14,15,16-Decahydro-1H-Cyclopenta[A]Phenanthren-3-One CAS NO 1235-97-8


19-Nortestosterone, 17-Ethynyl-10-Hydroxy- CAS NO 1236-00-6


Gestonorone Caproate CAS NO 1253-28-7
Why choose US
Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.






