Betamethasone impurity 96 CAS CATO-C4X-143796
| CAS No. | CATO-C4X-143796 |
| Molecular Formula | C22H30FO8P |
| Molecular Weight | 472.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C22H30FO8P, Betamethasone impurity 96 contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 472.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Betamethasone impurity 96 (CAS CATO-C4X-143796) is a certified pharmaceutical impurity reference standard with the molecular formula C22H30FO8P and a molecular weight of 472.44 g/mol.
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.
As a certified reference material (CRM), Betamethasone impurity 96 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H30FO8P |
| Molecular Weight | 472.44 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Betamethasone Standards
- Betamethasone impurity 103 (CAS CATO-C4X-1437103)
- Betamethasone Impurity 132 (CAS CATO-C4X-1437132)
- Betamethasone Impurity 135 (CAS CATO-C4X-1437135)
- Betamethasone impurity 45 (CAS 1215899-29-8)
- Betamethasone impurity 55 (CAS 1202002-02-5)
- Betamethasone impurity 56 (CAS 1202002-00-3)
- Betamethasone Unknown Impurity 3 (CAS CATO-CPS-2303001)
- Betamethasone Acetate EP Impurity C (CAS 330157-05-6)
Recommended Standards
- 3-{[(4-chlorophenyl)methyl]sulfanyl}-5-({[(4-chlorophenyl)methyl]sulfanyl}methyl)-4-phenyl-4H-1,2,4-triazole (CAS 344269-64-3)
- Folic Acid Impurity 35 (CAS 2311-81-1)
- Folic acid impurity 58 (CAS CATO-C4X-139558)
- N-Nitroso Minocycline EP Impurity C (CAS 28698-93-3)
- Goserelin Impurity 54 (CAS CATO-C4X-192054)
- Crizotinib Impurity 44 (CAS CATO-C4X-102544)
- Tetracaine Impurity 40 (CAS 63069-46-5)
- 2-(1H-Imidazol-1-yl)-5-phenyl-1,3,4-thiadiazole (CAS 203389-73-5)
- 1-[(5-cyclohexyl-1,2,4-oxadiazol-3-yl)methyl]piperazine hydrochloride (CAS 1423033-11-7)
- (S)-2-Amino-4-(vinylthio)butanoic acid (CAS 83768-87-0)
- N-(4-(Methylthio)phenyl)-3-phenylpropanamide (CAS 27816-91-7)
- Ethyl 2-Amino-4-chloropyrimidine-5-carboxylate (CAS 1240597-30-1)
- 4-{[(tert-butoxy)carbonyl](propan-2-yl)amino}butanoic acid (CAS 1183815-08-8)
- Peptide Impurity 82 (CAS 10491-78-8)
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