| CAS No. | 823-89-2 |
| Molecular Formula | C4H5BrN4 |
| Molecular Weight | 189.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 189.01 g/mol gives (5-Bromopyrimidin-2-yl)hydrazine 5-Bromo-2-hydrazino-1,3-diazine 5-bromo-2-hydrazinylpyrimidine 823-89-2 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(5-Bromopyrimidin-2-yl)hydrazine 5-Bromo-2-hydrazino-1,3-diazine 5-bromo-2-hydrazinylpyrimidine 823-89-2 (CAS 823-89-2), molecular formula C4H5BrN4 and molecular weight 189.01 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H5BrN4, (5-Bromopyrimidin-2-yl)hydrazine 5-Bromo-2-hydrazino-1,3-diazine 5-bromo-2-hydrazinylpyrimidine 823-89-2 contains a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), (5-Bromopyrimidin-2-yl)hydrazine 5-Bromo-2-hydrazino-1,3-diazine 5-bromo-2-hydrazinylpyrimidine 823-89-2 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.
| Molecular Formula | C4H5BrN4 |
| Molecular Weight | 189.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |