6-Chloro-5-iodo-2-(methylamino)pyrimidin-4(3H)-one CAS 1706458-32-3
| CAS No. | 1706458-32-3 |
| Molecular Formula | C5H5ClIN3O |
| Molecular Weight | 285.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
6-Chloro-5-iodo-2-(methylamino)pyrimidin-4(3H)-one (CAS 1706458-32-3), molecular formula C5H5ClIN3O and molecular weight 285.47 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6-Chloro-5-iodo-2-(methylamino)pyrimidin-4(3H)-one (C5H5ClIN3O) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 6-Chloro-5-iodo-2-(methylamino)pyrimidin-4(3H)-one 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 | C5H5ClIN3O |
| Molecular Weight | 285.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 3 |
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