

share
6Alpha,9-Difluoro-11Beta,21-Dihydroxypregna-1,4,16-Triene-3,20-Dione 21-Acetate CAS NO 2326-26-3
Unit Price:
CAS No.:2326-26-3
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
6Alpha,9-Difluoro-11Beta,21-Dihydroxypregna-1,4,16-Triene-3,20-Dione 21-Acetate is a high-purity synthetic steroid derivative, recognized for its potent anti-inflammatory and immunosuppressive pharmacological profile. This compound serves as a critical advanced intermediate in the synthesis of modern topical corticosteroids and other specialized pharmaceutical actives. It is essential for research and development laboratories, process chemists, and manufacturers within the global pharmaceutical and fine chemical sectors seeking reliable, high-quality building blocks.
Application
- Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of potent corticosteroid APIs, such as difluprednate and related analogues.
- Research & Development: Used in medicinal chemistry for structure-activity relationship (SAR) studies and the development of new anti-inflammatory agents.
- Process Chemistry: Serves as a standardized building block for scaling up production processes under cGMP conditions.
- Reference Standard: Employed as an analytical standard in quality control laboratories for HPLC, LC-MS, or NMR method development and validation.
- Biochemical Research: Utilized in studies investigating glucocorticoid receptor binding and downstream signaling pathways.
Basic Information
| Product Name | 6Alpha,9-Difluoro-11Beta,21-Dihydroxypregna-1,4,16-Triene-3,20-Dione 21-Acetate |
| CAS No. | 2326-26-3 |
| Molecular Formula | C23H26F2O6 |
| Molecular Weight | 436.45 g/mol |
| Synonyms | Difluprednate Intermediate; 6α,9α-Difluoro-11β,21-dihydroxy-1,4,16-pregnatriene-3,20-dione 21-acetate; 9α-Fluoro-11β,21-dihydroxy-16-methyleneprednisolone 21-acetate; 16-Methylene-6α,9α-difluoroprednisolone 21-acetate; 6α,9α-Difluoro-16-methyleneprednisolone 21-acetate; 21-Acetoxy-6α,9α-difluoro-11β-hydroxy-16-methyleneprednisone; NSC 134455 |
| EINECS | Contact for details |
Quality Control
Our 6Alpha,9-Difluoro-11Beta,21-Dihydroxypregna-1,4,16-Triene-3,20-Dione 21-Acetate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting the stringent requirements for pharmaceutical intermediates. A comprehensive Certificate of Analysis (COA) detailing HPLC assay, related substances, residual solvents, and other critical parameters is provided with every shipment.
Storage
Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.
Specification
| Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Identification (IR) | Conforms to reference spectrum |
| Identification (HPLC) | Retention time corresponds to reference standard |
| Assay (HPLC) | ≥ 98.0% |
| Related Substances (HPLC) | Total impurities ≤ 2.0% Any single impurity ≤ 0.5% |
| Loss on Drying | ≤ 1.0% |
| Residual Solvents (GC) | Complies with ICH Q3C guidelines |
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


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


Prednisone 21-Acetate CAS NO 125-10-0


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.






