5-Chloro-2-methoxy-6-nitro-1,8-naphthyridine CAS 2636814-69-0
| CAS No. | 2636814-69-0 |
| Molecular Formula | C9H6ClN3O3 |
| Molecular Weight | 239.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Chloro-2-methoxy-6-nitro-1,8-naphthyridine is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Chloro-2-methoxy-6-nitro-1,8-naphthyridine (CAS 2636814-69-0), molecular formula C9H6ClN3O3 and molecular weight 239.62 g/mol, is a CATO reference standard with documented purity and traceability.
5-Chloro-2-methoxy-6-nitro-1,8-naphthyridine (C9H6ClN3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H6ClN3O3 |
| Molecular Weight | 239.62 g/mol |
| Appearance | Pale yellow to 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 |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- N-(4-chloro-3-nitrophenyl)-2-cyanoacetamide (CAS 385393-84-0)
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- 3-(4-Chlorophenyl)azetidine (CAS 7215-02-3)
- 2-({5H-chromeno[4,3-d]pyrimidin-2-yl}(methyl)amino)acetic acid (CAS 176717-37-6)
- n-(2-Bromobenzyl)-1-methyl-1h-pyrazol-4-amine (CAS 1153290-79-9)
- 5-Chloro-3-(o-tolyl)benzo[c]isoxazole (CAS 94100-11-5)
- methyl 3-(bromomethyl)thiophene-2-carboxylate (CAS 59961-15-8)
- 2-[(1,3-Thiazol-2-ylmethyl)amino]ethanoldihydrochloride (CAS 1189968-09-9)
- methyl 5-(aminomethyl)-3-methylfuran-2-carboxylate hydrochloride (CAS 2044837-22-9)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
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