3-chloro-1,2-dihydropyrazin-2-one CAS 105985-17-9
| CAS No. | 105985-17-9 |
| Molecular Formula | C4H7ClN2O |
| Molecular Weight | 134.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-chloro-1,2-dihydropyrazin-2-one is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-chloro-1,2-dihydropyrazin-2-one (CAS 105985-17-9) is a high-purity analytical reference standard with the molecular formula C4H7ClN2O and a molecular weight of 134.56 g/mol.
3-chloro-1,2-dihydropyrazin-2-one (C4H7ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 3-chloro-1,2-dihydropyrazin-2-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 | C4H7ClN2O |
| Molecular Weight | 134.56 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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- 4-Amino-3-(difluoromethyl)-6-(hydroxymethyl)pyridin-2-ol (CAS 1805953-03-0)
- N-methylazetidin-2-amine dihydrochloride (CAS 1414513-87-3)
- 5-Iodo-2-methoxy-4,6-dimethylnicotinonitrile (CAS 858120-02-2)
- 2-(Aminomethyl)-3-fluoropyridine Dihydrochloride (CAS 312904-49-7)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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