2-(1H-1,3-Benzodiazol-2-yl)-4-chloro-5-(morpholin-4-yl)-2,3-dihydropyridazin-3-one CAS 565192-21-4
| CAS No. | 565192-21-4 |
| Molecular Formula | C15H14ClN5O2 |
| Molecular Weight | 331.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(1H-1,3-Benzodiazol-2-yl)-4-chloro-5-(morpholin-4-yl)-2,3-dihydropyridazin-3-one (CAS 565192-21-4), molecular formula C15H14ClN5O2 and molecular weight 331.76 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(1H-1,3-Benzodiazol-2-yl)-4-chloro-5-(morpholin-4-yl)-2,3-dihydropyridazin-3-one (C15H14ClN5O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 331.76 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 2-(1H-1,3-Benzodiazol-2-yl)-4-chloro-5-(morpholin-4-yl)-2,3-dihydropyridazin-3-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 | C15H14ClN5O2 |
| Molecular Weight | 331.76 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 |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related H Standards
- 2-(1H-1,3-Benzodiazol-2-yl)-4-chloro-5-(piperidin-1-yl)-2,3-dihydropyridazin-3-one (CAS 554404-38-5)
- 2-(1H-1,3-benzodiazol-2-yl)-3-{[3-(trifluoromethyl)phenyl]amino}prop-2-enenitrile (CAS 244167-61-1)
- 2-(1h-1,3-Benzodiazol-2-yl)-1-(3,4,5-trimethoxyphenyl)ethan-1-one (CAS 565166-62-3)
- 1-[3-(1h-1,3-benzodiazol-2-ylsulfanyl)propyl]-2,3-dihydro-1h-1,3-benzodiazol-2-one (CAS 434292-96-3)
- 5-[(1H-1,3-Benzodiazol-2-ylsulfanyl)methyl]-4-phenyl-4H-1,2,4-triazole-3-thiol (CAS 328106-49-6)
- 3-(1H-1,3-Benzodiazol-2-yl)-6-bromo-2H-chromen-2-one (CAS 143376-72-1)
- 2-(1H-1,3-Benzodiazol-2-yl)-3-(3,4-dimethoxyphenyl)propanethioamide (CAS 1261009-91-9)
- 2-(1H-1,3-Benzodiazol-2-yl)-4-chloro-5-[(3-hydroxypropyl)amino]-2,3-dihydropyridazin-3-one (CAS 726152-52-9)
Recommended Standards
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- Oxazepam impurity 2 (CAS 5628-00-2)
- Norflurazepam (CAS 17617-59-3)
- Ethyl 4,6-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-65-8)
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- Cloxacillin Impurity 26 (CAS CATO-C4X-159726)
- Tert-butyl 3-(thietan-3-ylamino)pyrrolidine-1-carboxylate (CAS 1890130-12-7)
- 5-Iodo-7-isopropyl-N-methyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 833481-33-7)
- 2-Chloro-N,N-dipropylbenzamide (CAS 349397-59-7)
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- Insulin Glargine (CAS 160337-95-1)
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