N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-3-nitropyridin-2-amine CAS 61963-63-1
| CAS No. | 61963-63-1 |
| Molecular Formula | C13H11N3O4 |
| Molecular Weight | 273.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-3-nitropyridin-2-amine (CAS 61963-63-1), molecular formula C13H11N3O4 and molecular weight 273.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-3-nitropyridin-2-amine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 273.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C13H11N3O4 |
| Molecular Weight | 273.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
Related N Standards
- 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 1267252-53-8)
- ((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)glycine (CAS 300567-51-5)
- 2-(1-((2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)methyl)piperidin-4-yl)acetonitrile (CAS 194612-30-1)
- 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-4,4,4-trifluorobutane-1,3-dione (CAS 832739-46-5)
- 2-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)amino)nicotinic acid (CAS 173095-01-7)
- 2-Oxo-2,4-dihydrobenzo[d][1,3]oxazine-7-boronic Acid Pinacol Ester (CAS 1809200-96-1)
- Phenyl (2,3-dihydrobenzo[b][1,4]dioxin-6-yl)carbamate (CAS 167264-90-6)
- 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-5-ethyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1097065-24-1)
Recommended Standards
- Mieshuan (CAS 51594-83-3)
- N-(5-(Benzo[d][1,3]dioxol-5-yl)-1,3,4-oxadiazol-2-yl)cyclopropanecarboxamide (CAS 922018-23-3)
- Methyl 5-nitro-2-phenoxybenzoate (CAS 346704-90-3)
- N-benzyl-2,4-dinitroaniline (CAS 7403-38-5)
- 1-(Piperidine-4-yl)-3-p-tolylurea hydrochloride (CAS 1233952-65-2)
- 4-(4-Chlorophenyl)-2-piperidone (CAS 1260770-82-8)
- 2-Acetyl-3-methyl-1h,4h,5h,6h,7h-pyrrolo[3,2-c]pyridine-4,6-dione (CAS 870692-82-3)
- 2-(Difluoromethyl)-3-fluoro-5-iodopyridine-4-sulfonamide (CAS 1805046-56-3)
- 5-bromo-6-(trifluoromethyl)pyridine-3-carbonitrile (CAS 1245915-01-8)
- N-(3-Chlorophenyl)-4-(trifluoromethyl)benzenesulfonamide (CAS 1022777-49-6)
- 1-(2-Isopropoxybenzyl)piperazine (CAS 906088-71-9)
- 4-Phenoxypicolinimidamide hydrochloride (CAS 1179360-92-9)
- 1,2-Dihydro-2-oxo-4-quinolinecarbonitrile (CAS 63158-99-6)
- Semaglutide Impurity 2 (CAS CATO-C4X-22262)
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