2-Chloro-4-nitropyridine 1-Oxide CAS 14432-16-7
| CAS No. | 14432-16-7 |
| Molecular Formula | C5H3ClN2O3 |
| Molecular Weight | 174.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 2-Chloro-4-nitropyridine 1-Oxide (CAS 14432-16-7), a certified reference material (molecular formula C5H3ClN2O3, MW 174.54 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H3ClN2O3, 2-Chloro-4-nitropyridine 1-Oxide contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 174.54 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.
As a certified reference material (CRM), 2-Chloro-4-nitropyridine 1-Oxide 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 | C5H3ClN2O3 |
| Molecular Weight | 174.54 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 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-Chloro-5-nitropyridin-4-ol (CAS 1211386-69-4)
- 4-Chloro-3-nitropyridin-2(3H)-one (CAS 1218764-78-3)
- 2-Chloro-5,6-difluoronicotinonitrile (CAS 1309371-71-8)
- 2-Chloro-5-nitropyridin-3-ol (CAS 1395037-06-5)
- 5-Chloro-3-oxo-3,4-dihydropyrazine-2-carboxylic acid (CAS 150718-29-9)
- 2-Chloro-4-nitro-3-pyridinol (CAS 15128-85-5)
- 2-chloro-3-hydroxy-6-nitro-pyridin (CAS 15206-27-6)
- 5-Chloro-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carbaldehyde (CAS 1556124-18-5)
Recommended Standards
- (R)-(3-Chloro-2-hydroxypropyl)phosphonic acid (CAS 221627-94-7)
- 4-Chloro-3-nitro-2-pyridone (CAS 165547-79-5)
- 1,2-Phenylene Phosphorochloridite (technical grade) (CAS 1641-40-3)
- 3-Chloro-2-nitropyridine 1-oxide (CAS 1704065-34-8)
- 7-Chloro-4-fluoro-1H-pyrrolo[3,2-c]pyridine (CAS 1082040-96-7)
- 4,4'-(Pentane-1,1-diyl)diphenol (CAS 17181-62-3)
- n,n-Dimethyl-2-((tetrahydrothiophen-3-yl)amino)acetamide (CAS 1095587-35-1)
- 2-(4-Chlorophenyl)-2H-indazole (CAS 61073-53-8)
- 4-Bromo-2,2-dimethylindolin-3-one (CAS 2761573-12-8)
- Brexpiprazole impurity 116 (CAS CATO-C4X-1131116)
- Benzyl 4-(cyclopropyl(2-hydroxyethyl)amino)piperidine-1-carboxylate (CAS 1353953-31-7)
- 3-((2-Chloro-6-fluorobenzyl)thio)-5-(4-chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazole (CAS 477331-50-3)
- 2,4(1H,3H)-QUINAZOLINEDIONE, 3-AMINO-1-CYCLOPROPYL-6,7-DIFLUORO-8-METHYL- (CAS 351368-44-0)
- Semaglutide impurity 193 (CAS CATO-C4X-2226193)
Why CATO?
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