

share
Pregna-1,4-Dien-3-One, 9-Fluoro-11,17,20,21-Tetrahydroxy-16-Methyl-, (11β,16α)- (9Ci) CAS NO 55879-48-6
Unit Price:
CAS No.:55879-48-6
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
Pregna-1,4-Dien-3-One, 9-Fluoro-11,17,20,21-Tetrahydroxy-16-Methyl-, (11β,16α)- (9Ci) is a high-purity synthetic corticosteroid intermediate of significant pharmaceutical importance. This compound serves as a critical building block in the synthesis of potent anti-inflammatory and immunosuppressive steroid APIs, valued for its precise stereochemistry and functional groups. It is essential for manufacturers in the pharmaceutical and fine chemical sectors requiring reliable, high-quality raw materials for advanced steroid production.
Application
- Pharmaceutical Intermediate: A key precursor in the synthesis of advanced corticosteroid active pharmaceutical ingredients (APIs).
- Anti-inflammatory Drug Development: Used in research and production of medications targeting inflammation, allergies, and autoimmune disorders.
- Steroid Synthesis: Integral for constructing complex steroid molecules with specific fluorinated and hydroxylated configurations.
- Biochemical Research: Employed as a reference standard or reagent in steroid metabolism and receptor binding studies.
- Veterinary Medicine: Used in the development of anti-inflammatory treatments for animals.
- Fine Chemical Manufacturing: Serves as a specialized intermediate for custom synthesis and contract manufacturing organizations (CMOs).
Basic Information
| Item | Details |
|---|---|
| Product Name | Pregna-1,4-Dien-3-One, 9-Fluoro-11,17,20,21-Tetrahydroxy-16-Methyl-, (11β,16α)- (9Ci) |
| CAS No. | 55879-48-6 |
| Molecular Formula | C₂₂H₂₉FO₆ |
| Molecular Weight | 408.46 g/mol |
| Synonyms | 9α-Fluoro-11β,17α,20β,21-tetrahydroxy-16α-methylpregna-1,4-diene-3-one; 9-Fluoro-11β,17,20,21-tetrahydroxy-16α-methylpregna-1,4-dien-3-one; 16α-Methyl-9α-fluoroprednisolone; Fluoroprednisolone 16α-methyl derivative; (11β,16α)-9-Fluoro-11,17,20,21-tetrahydroxy-16-methylpregna-1,4-dien-3-one |
| EINECS | Contact for details |
Quality Control
Our Pregna-1,4-Dien-3-One, 9-Fluoro-11,17,20,21-Tetrahydroxy-16-Methyl-, (11β,16α)- (9Ci) is manufactured under strict quality management systems. The product undergoes rigorous analytical testing, including HPLC, IR, and NMR, to ensure high chemical purity and identity confirmation, meeting the stringent requirements for pharmaceutical intermediate use. Certificates of Analysis (COA) detailing batch-specific results 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). 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 using desiccants.
Specification
| Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Identification (IR) | Conforms to structure |
| Identification (HPLC) | Conforms to reference |
| Assay (HPLC) | ≥ 98.0% |
| Related Substances (HPLC) | Total impurities ≤ 2.0% |
| Loss on Drying | ≤ 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.
Hot Related Products


Hydrocortisone CAS NO 74050-20-7


Dexamethasone Sodium Phosphate CAS NO 55203-24-2


4-Pregnene-20,21-Diol-3,11-Dione CAS NO 116-56-3


4-Pregnene-17-A-20-B-21-Triol-*3-11-Dion E CAS NO 116-59-6


Prednisone 21-Acetate CAS NO 125-10-0


Triamcinolone CAS NO 124-94-7


Prednisolone Phosphate Sodium CAS NO 125-02-0


Hydrocortamate Hydrochloride CAS NO 125-03-1


Hydrocortisone Sodium Succinate CAS NO 125-04-2


Fludrocortisone CAS NO 127-31-1


Betamethasone 21-Phosphate Disodium CAS NO 151-73-5


(11Beta,16Alpha)-9-Fluoro-11-Hydroxy-17,21-[(1-Methoxypentylidene)Bis(Oxy)]-16-Methylpregna-1,4-Diene-3,20-Dione CAS NO 1062-64-2


Sodium Prasterone Sulfate CAS NO 1099-87-2


17-Hydroxy-3-Methoxy-6-Methylpregna-3,5-Dien-20-One Acetate CAS NO 1104-99-0


16-Meprednisone Acetate CAS NO 1106-03-2


Prednisolone 21-Trimethylacetate CAS NO 1107-99-9


Cortivazol CAS NO 1110-40-3


1,4-Pregnadien-3,20-Dione CAS NO 1162-54-5


11Beta,16Alpha,17,21-Tetrahydroxypregn-4-Ene-3,20-Dione CAS NO 1171-81-9


Corticosterone 21-Acetate CAS NO 1173-26-8
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.






