N-nitroso-desmethyl-demeclocycline CAS CATO-C4X-160811
| CAS No. | CATO-C4X-160811 |
| Molecular Formula | C20H18ClN3O9 |
| Molecular Weight | 479.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
N-nitroso-desmethyl-demeclocycline (CAS CATO-C4X-160811), molecular formula C20H18ClN3O9 and molecular weight 479.82 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H18ClN3O9, N-nitroso-desmethyl-demeclocycline contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 479.82 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H18ClN3O9 |
| Molecular Weight | 479.82 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related N Standards
- N-Nitroso Minocycline impurity 77 (CAS CATO-C4X-169977)
- N-Nitroso Aripiprazole (CAS CATO-C4X-100868)
- N-Nitroso Cloxacillin Impurity 33 (CAS CATO-C4X-159733)
- N-Nitroso Dalpiciclib impurity 2 (CAS CATO-C4X-32952)
- N-Nitroso Dequalinium impurity 36 (CAS CATO-C4X-193636)
- N1-Nitroso Mitoxantrone (CAS CATO-C4X-103412)
- N-Nitroso Mitoxantrone Impurity 8 (CAS CATO-C4X-10348)
- N-Nitroso Minocycline EP Impurity C (CAS 28698-93-3)
Recommended Standards
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