Betamethasone Impurity 66 CAS 90039-90-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 90039-90-0 |
| Molecular Formula | C20H24O2 |
| Molecular Weight | 296.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity Betamethasone Impurity 66 (CAS 90039-90-0) pharmaceutical standards reference standard. Molecular formula: C20H24O2. Molecular weight: 296.40 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C20H24O2 |
| Molecular Weight | 296.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
Related Betamethasone Standards
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- Betamethasone Impurity 10 (CAS 38680-83-0)
- Betamethasone Impurity 78 (CAS CATO-C4X-143778)
- Betamethasone Impurity 81 (CAS CATO-C4X-143781)
- Betamethasone EP Impurity C (CAS 13504-15-9)
- Betamethasone EP Impurity F (CAS 330157-04-5)
- Betamethasone Impurity 94 (CAS 19784-87-3)
Recommended Standards
- 9-Isopropyl-10-phenylanthracene (CAS 76843-18-0)
- Diethylstilbestrol Dimethyl Ether (CAS 7773-34-4)
- 9-Benzyl-1,4-dimethylanthracene (CAS 56181-32-9)
- 2-(Aminomethyl)-5-(difluoromethyl)-3-hydroxypyridine-6-methanol (CAS 1806880-35-2)
- 1-(5-Chloro-4-methylpyridin-2-yl)ethan-1-one (CAS 1256806-22-0)
- Methyl 6-hydroxy-5-oxo-1,2,3,5-tetrahydroindolizine-8-carboxylate (CAS 185198-42-9)
- 3-Bromo-4-chloro-2-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 744209-66-3)
- 2-Amino-3-bromo-6-fluoro-5-iodobenzonitrile (CAS 1000577-79-6)
- 1-Benzyl-5-(4-methyl-5-sulfanyl-4H-1,2,4-triazol-3-yl)-1,2-dihydropyridin-2-one (CAS 242472-11-3)
- FLAG Epitope Peptide (CAS 98849-88-8)
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