4-chloro-5-nitro-1,2-dihydropyridin-2-one CAS 850663-54-6
| CAS No. | 850663-54-6 |
| Molecular Formula | C5H7ClN2O3 |
| Molecular Weight | 178.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-chloro-5-nitro-1,2-dihydropyridin-2-one (CAS 850663-54-6), a certified reference material (molecular formula C5H7ClN2O3, MW 178.57 g/mol) for analytical method development and quality control.
Structurally, 4-chloro-5-nitro-1,2-dihydropyridin-2-one (C5H7ClN2O3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 178.57 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 4-chloro-5-nitro-1,2-dihydropyridin-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 | C5H7ClN2O3 |
| Molecular Weight | 178.57 g/mol |
| Appearance | 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related chloro Standards
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Recommended Standards
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- (4-pyrimidin-5-ylphenyl)methanol 198084-12-7 A813958 [4-(5-pyrimidinyl)phenyl]methanol (CAS 198084-12-7)
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- Methyl 2,3-dibromo-5,6-difluorophenylacetate (CAS 1806326-49-7)
- N-(1-Benzylpyridin-4(1H)-ylidene)pivalamide (CAS 1448030-40-7)
- Des-Lys20(Side Chain)-Semaglutide (CAS CATO-C4X-2226280)
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