84473-64-3 Pyrazinecarbonyl chloride monohydrochloride EINECS 282-918-3 Pyrazinecarbonyl chloride HCl CAS 84473-64-3
| CAS No. | 84473-64-3 |
| Molecular Formula | C5H3ClN2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 179.00 g/mol gives 84473-64-3 Pyrazinecarbonyl chloride monohydrochloride EINECS 282-918-3 Pyrazinecarbonyl chloride HCl distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
84473-64-3 Pyrazinecarbonyl chloride monohydrochloride EINECS 282-918-3 Pyrazinecarbonyl chloride HCl (CAS 84473-64-3) is a high-purity analytical reference standard with the molecular formula C5H3ClN2OHCl and a molecular weight of 179.00 g/mol.
The molecular framework of 84473-64-3 Pyrazinecarbonyl chloride monohydrochloride EINECS 282-918-3 Pyrazinecarbonyl chloride HCl (C5H3ClN2OHCl) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine 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.
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), 84473-64-3 Pyrazinecarbonyl chloride monohydrochloride EINECS 282-918-3 Pyrazinecarbonyl chloride 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 | C5H3ClN2O HCl |
| Molecular Weight | 179.00 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.) | 1981 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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