2-Chloro-3-{[(pyridin-2-yl)methyl]amino}-1,4-dihydronaphthalene-1,4-dione CAS 21217-58-3
| CAS No. | 21217-58-3 |
| Molecular Formula | C16H11ClN2O2 |
| Molecular Weight | 298.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-3-{[(pyridin-2-yl)methyl]amino}-1,4-dihydronaphthalene-1,4-dione (C16H11ClN2O2) 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, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
2-Chloro-3-{[(pyridin-2-yl)methyl]amino}-1,4-dihydronaphthalene-1,4-dione (CAS 21217-58-3), molecular formula C16H11ClN2O2 and molecular weight 298.72 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Chloro-3-{[(pyridin-2-yl)methyl]amino}-1,4-dihydronaphthalene-1,4-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H11ClN2O2 |
| Molecular Weight | 298.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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 DMSO, DMF, methanol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
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Recommended Standards
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- 2-(3-Aminophenyl)-6-chloroquinoline-4-carboxylic acid (CAS 590359-91-4)
- (1S,2S)-1,2-Di(4'-methoxyphenyl)-1,2-diaminoethane (CAS 58520-04-0)
- cis-1-Benzyl-N,4-dimethylpiperidin-3-amine dihydrochloride（and enantiomer） (CAS 477600-68-3)
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- (5Z)-2-(Hydroxyamino)-5-{[2-(trifluoromethyl)phenyl]methylidene}-4,5-dihydro-1,3-thiazol-4-one (CAS 866040-89-3)
- 5-Methyl-2-(4-nitrostyryl)oxazole (CAS 791852-72-7)
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