Prednisone Sodium Phosphate CAS 33903-70-7
| CAS No. | 33903-70-7 |
| Molecular Formula | C21H25O8P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Prednisone Sodium Phosphate is closely related to a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Prednisone Sodium Phosphate (CAS 33903-70-7) is a high-purity analytical reference standard with the molecular formula C21H25O8PNa and a molecular weight of 459.39 g/mol.
Structurally, Prednisone Sodium Phosphate (C21H25O8PNa) contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.5, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 459.39 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Prednisone Sodium Phosphate 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 | C21H25O8P 2*Na |
| Molecular Weight | 459.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
Related Prednisone Standards
- Prednisone EP Impurity D (CAS 10184-69-7)
- Prednisone Impurity 10 (CAS 103335-31-5)
- Prednisone Impurity N56 (CAS 103466-44-0)
- Prednisone Impurity 15 (CAS 115097-56-8)
- Prednisone Impurity N297 (CAS 1249-67-8)
- Prednisone 21-Acetate (CAS 125-10-0)
- Prednisone Impurity 16 (CAS 15714-29-1)
- Prednisone Impurity 5 (CAS 215095-77-5)
Recommended Standards
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- tert-Butyl (2-(4-(piperidin-4-yl)benzamido)phenyl)carbamate (CAS 934828-07-6)
- (2S,5S)-5-(4-chlorobenzyl)-2-methylmorpholine (CAS 2088453-97-6)
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- 1-Dodecyl-1H-pyrrole-2,5-dione (CAS 17616-03-4)
- 2,4,5-T-2-Octyl Ester (CAS 219827-50-6)
- [Glu]17-Semaglutide (CAS CATO-CPTD788604)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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