17-Methoxycarbonyl Loteprednol CAS 265651-89-6
| CAS No. | 265651-89-6 |
| Molecular Formula | C23H29ClO7 |
| Molecular Weight | 452.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 17-Methoxycarbonyl Loteprednol is closely related to a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
17-Methoxycarbonyl Loteprednol (CAS 265651-89-6) is a high-purity analytical reference standard with the molecular formula C23H29ClO7 and a molecular weight of 452.93 g/mol.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution, 17-Methoxycarbonyl Loteprednol is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 452.93 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 17-Methoxycarbonyl Loteprednol 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 | C23H29ClO7 |
| Molecular Weight | 452.93 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
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Recommended Standards
- Budesonide Impurity 66 (CAS CATO-C4X-138966)
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Why CATO?
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