MethylPrednisolone Impurity 66 CAS CATO-C4X-191966
| CAS No. | CATO-C4X-191966 |
| Molecular Formula | C27H36O8 |
| Molecular Weight | 488.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures MethylPrednisolone Impurity 66 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.
MethylPrednisolone Impurity 66 (CAS CATO-C4X-191966) is a certified pharmaceutical impurity reference standard with the molecular formula C27H36O8 and a molecular weight of 488.57 g/mol.
Structurally, MethylPrednisolone Impurity 66 (C27H36O8) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 488.57 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C27H36O8 |
| Molecular Weight | 488.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >90% |
| 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 |
Related MethylPrednisolone Standards
- Methylprednisolone Impurity 76 (CAS CATO-C4X-191976)
- Methylprednisolone impurity 88 (CAS CATO-C4X-191988)
- Methylprednisolone Impurity 77 (CAS CATO-C4X-191977)
- Methylprednisolone Impurity 51 (CAS CATO-C4X-191951)
- Methylprednisolone Impurity 72 (CAS 1012306-79-4)
- Methylprednisolone Hydrogen Succinate EP Impurity D (CAS 119657-85-1)
- Methylprednisolone Impurity 52 (CAS CATO-C4X-191952)
- Methylprednisolone Hydrogen Succinate EP Impurity F (CAS 2376134-25-5)
Recommended Standards
- Tetrakis(4-acetylphenyl)methane (CAS 313484-93-4)
- Hydrocortisone 11,17,21-Triacetate (CAS 3517-51-9)
- H-Orn(Boc)-OBzl.HCl (CAS 210750-95-1)
- Prednicarbate (CAS 73771-04-7)
- Doxycycline EP Impurity B（HCl） (CAS 3963-95-9)
- Tiopronin Impurity 6 (CAS 6182-96-3)
- Nimodipine Impurity 9 (CAS 116799-92-9)
- 2-((1,2,5-Trimethylpiperidin-4-yl)amino)butan-1-ol (CAS 198543-01-0)
- (2e)-3-(6-Fluoro-2,4-dihydro-1,3-benzodioxin-8-yl)prop-2-enoic acid (CAS 773132-38-0)
- 2,3,6,7-Tetrahydroimidazo[1,2-a]pyrimidin-5(1H)-one (CAS 15231-34-2)
- (S)-2-((tert-Butyldimethylsilyl)oxy)-1-(5-fluoropyridin-2-yl)ethan-1-ol (CAS 2833707-05-2)
- 5,11-Dibromotetracene (CAS 40577-78-4)
- 1-(3-(Benzyloxy)pyridin-2-yl)-3-(4-methoxybenzyl)urea (CAS 1023511-68-3)
- 107444-51-9 0JS9125PIZ Glucagon-like peptide 1 (7-36) Glucagon-related peptide 1 (Rana catesbeiana), 3-L-glutamic acid-10-L-valine-16-glycine-17-L-glutamine-23-L-isoleucine-24-L-alanine-27-L-valine-30-L-argininamide-31-de-L-proline-32-de-L-lysine- Glp-I (7-36) Proglucagon (78-107) Human glucagon-like peptide-1-(7-36) amide Human GLP-1-(7-36)-amide Glucagon-like peptide-I(7-36) amide Rat GLP-I(7-36)amide Insulinotropin (human) MKC 253 UNII-0JS9125PIZ (CAS 107444-51-9)
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