Prednisolone Acetate EP Impurity C CAS 98523-85-4
| CAS No. | 98523-85-4 |
| Molecular Formula | C25H32O7 |
| Molecular Weight | 444.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Prednisolone Acetate EP Impurity C.
CATO supplies Prednisolone Acetate EP Impurity C (CAS 98523-85-4), a pharmacopoeial impurity reference standard (molecular formula C25H32O7, MW 444.52 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, Prednisolone Acetate EP Impurity C is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 444.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Prednisolone Acetate EP Impurity C under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C25H32O7 |
| Molecular Weight | 444.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
Related Prednisolone Standards
- Prednisolone-17-valerate (CAS 15180-00-4)
- Prednisolone-21-valerate (CAS 39791-31-6)
- Prednisolone Pivalate (CAS 1107-99-9)
- Prednisolone Impurity 30 (CAS 3517-48-4)
- Prednisolone Impurity 31 (CAS 6677-19-6)
- Prednisolone EP Impurity A Hydrochloride (CAS 393782-60-0)
- Prednisolone Phosphate - API Standards (CAS 302-25-0)
- Prednisolone Impurity 20 (CAS CATO-C4X-173720)
Recommended Standards
- Hydrocortisone Impurity 72 (CAS CATO-C4X-140172)
- Difenacoum (CAS 56073-07-5)
- Budesonide impurity 45 (CAS 3517-49-5)
- Aurantiamide acetate (CAS 56121-42-7)
- Posaconazole Impurity 277 (CAS CATO-C4X-1208277)
- Peptide Impurity 27 (CAS 1350456-68-6)
- Vildagliptin Impurity N18 (CAS 700376-84-7)
- 2-(3,5-Dimethylisoxazol-4-yl)acetohydrazide hydrochloride (CAS 1269106-09-3)
- (2Z)-2-Amino-3-[(E)-[(6,8-dichloro-4-oxo-4H-chromen-3-yl)methylidene]amino]but-2-enedinitrile (CAS 1024826-43-4)
- Cefazolin Impurity N14 (CAS 21743-64-6)
- Adrenochrome Impurity 46 (CAS 87708-46-1)
- P-Xylene (CAS 106-42-3)
- 4-Guanidinobenzoyl chloride hydrochloride (CAS 7035-79-2)
- Palmitoyl Tripeptide-1 HCl (CAS 2757690-14-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com