N-Nitroso Hydroxychloroquine HCl CAS CATO-C4X-183598
| CAS No. | CATO-C4X-183598 |
| Molecular Formula | C18H25ClN4O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-Nitroso Hydroxychloroquine HCl (CAS CATO-C4X-183598), molecular formula C18H25ClN4O2HCl and molecular weight 401.33 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, N-Nitroso Hydroxychloroquine HCl (C18H25ClN4O2HCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 401.33 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), N-Nitroso Hydroxychloroquine HCl 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 | C18H25ClN4O2 HCl |
| Molecular Weight | 401.33 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ≥95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related N Standards
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- N-Nitroso-2-Methylthiazolidine-4-Carboxylic Acid (CAS 103659-08-1)
- N-Nitroso Fexofenadine EP Impurity E (CAS 1038-06-8)
- N-Nitroso-N-methyl-3-aminopropionic Acid (CAS 10478-42-9)
- N-Nitroso Akardite II (CAS 1076199-26-2)
- N-Nitroso Thiamazole EP Impurity A (CAS 111348-65-3)
- N-Nitroso-Diethanolamine (CAS 1116-54-7)
Recommended Standards
- 3-Methyl-4-phenylbutanoic acid (CAS 7315-68-6)
- 4-Bromo-1-methyl-5-nitro-1H-pyrazole-3-carboxylic acid (CAS 84547-91-1)
- 3-(dimethylamino)-4-methylbenzene-1-sulfonamide (CAS 1093759-99-9)
- 4-((2-Chlorophenyl)thio)pentan-2-one (CAS 1343725-60-9)
- Methyl 5,6-dichloropyrimidine-4-carboxylate (CAS 1554322-22-3)
- 7-Ethynyl-5-methylbenzofuran (CAS 1245256-04-5)
- 1-propyl-1H-pyrazole-5-carboxylic acid (CAS 1004643-68-8)
- 1-(3-Chlorophenyl)-4-hydroxy-5-iodo-6-oxo-1,6-dihydropyridazine-3-carboxylic acid (CAS 383148-80-9)
- Diiodobis(triphenylphosphine)nickel(II) (CAS 82308-17-6)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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