Methylprednisolone Acetate EP Impurity I CAS 6870-94-6
| CAS No. | 6870-94-6 |
| Molecular Formula | C22H30O4 |
| Molecular Weight | 358.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 358.47 g/mol gives Methylprednisolone Acetate EP Impurity I distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Methylprednisolone Acetate EP Impurity I (CAS 6870-94-6, C22H30O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Methylprednisolone Acetate EP Impurity I (C22H30O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 Methylprednisolone Acetate EP Impurity I 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 | C22H30O4 |
| Molecular Weight | 358.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Methylprednisolone Standards
- Methylprednisolone Impurity 57 (CAS 1048031-80-6)
- Methylprednisolone Impurity 81 (CAS 82332-00-1)
- Methylprednisolone EP Impurity D (CAS 1338549-02-2)
- Methylprednisolone EP Impurity G (CAS 93269-35-3)
- Methylprednisolone EP Impurity D(E-Isomer) (CAS CATO-C4X-19194)
- Methylprednisolone Impurity 79 (CAS CATO-C4X-191979)
- Methylprednisolone impurity 6 (CAS CATO-C4X-191986)
- Methylprednisolone Acetate EP Impurity C (CAS 58636-50-3)
Recommended Standards
- Ulipristal Impurity 28 (CAS 42982-49-0)
- Peramivir Impurity 63 (CAS 1988779-13-0)
- Peramivir Impurity 25 (CAS 316173-29-2)
- Pregnenolone Impurity 9 (CAS 66905-18-8)
- Dotinurad Impurity 239 (CAS CATO-C4X-2494239)
- Flunarizine EP Impurity D（(Z)-Flunarizine） (CAS 693765-11-6)
- Testosterone Impurity 37 (CAS CATO-C4X-243237)
- Hexanoic-2,2-d2 Acid (CAS 55320-65-5)
- 2-Chloro-4,5-dihydro-1H-imidazole (CAS 54255-11-7)
- (4-Amino-6-methylpyridin-3-yl)boronic acid (CAS 1310404-54-6)
- 5-(2-Aminoethyl)thiazol-2-ol hydrochloride (CAS 1806489-82-6)
- (2)-Methyl-6-nitro-2,3-dihydroimidazo[2,1-b]oxazol-2-yl)methanol, 97% (CAS 681491-12-3)
- 2-(4-(4-Fluorophenyl)piperidin-1-yl)ethan-1-amine (CAS 944907-01-1)
- Hexapeptide-9 (CAS 885024-94-2)
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