Methylprednisolone Impurity 57 CAS 1048031-80-6
| CAS No. | 1048031-80-6 |
| Molecular Formula | C22H30O4 |
| Molecular Weight | 358.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Methylprednisolone Impurity 57 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.
CATO supplies Methylprednisolone Impurity 57 (CAS 1048031-80-6), a pharmacopoeial impurity reference standard (molecular formula C22H30O4, MW 358.47 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, Methylprednisolone Impurity 57 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 358.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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.) | 1988 |
Related Methylprednisolone Standards
- Methylprednisolone Acetate EP Impurity I (CAS 6870-94-6)
- 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)
- Pregnenolone Impurity 9 (CAS 66905-18-8)
- Peramivir Impurity 63 (CAS 1988779-13-0)
- tert-butyl (R)-(2,5-dimethyl-4-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-2,3-dihydrobenzofuran-7-yl)carbamate (CAS CATO-C4X-30133)
- Dotinurad Impurity 177 (CAS CATO-C4X-2494177)
- Daptomycin Impurity B1-I (CAS CATO-C4X-137824)
- Eplerenone Impurity 17 (CAS CATO-C4X-163017)
- 5-(Trifluoromethyl)pyrrolo[2,3-b]pyridine-4-carbaldehyde (CAS 1261365-68-7)
- 2-(5-Bromo-2-fluoropyridin-3-yl)acetonitrile (CAS 1227606-59-8)
- 5'-Methoxy-2',3'-dihydrospiro[azetidine-3,1'-indene] (CAS 1780578-45-1)
- Sodium 3-acetamidobenzene-1-sulfonate (CAS 1080-11-1)
- Ceftazidime Impurity 44 (CAS 2259869-88-8)
- 7,8-Dibromo-9-methyl-2-(piperazin-1-yl)-5,6-dihydro-4H-imidazo[4,5,1-ij]quinoline hydrochloride (CAS 1609452-30-3)
- Palmitoyl Tripeptide -5 · 2 TFA (CAS 623172-56-5)
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