1-(4-Chlorophenyl)-3-(1-(3-nitrobenzoyl)-1H-pyrazol-3-yl)pyridazin-4(1H)-one CAS 318498-05-4
| CAS No. | 318498-05-4 |
| Molecular Formula | C20H12ClN5O4 |
| Molecular Weight | 421.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(4-Chlorophenyl)-3-(1-(3-nitrobenzoyl)-1H-pyrazol-3-yl)pyridazin-4(1H)-one (C20H12ClN5O4) contains a flavonoid core, 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
1-(4-Chlorophenyl)-3-(1-(3-nitrobenzoyl)-1H-pyrazol-3-yl)pyridazin-4(1H)-one (CAS 318498-05-4) is a high-purity analytical reference standard with the molecular formula C20H12ClN5O4 and a molecular weight of 421.79 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(4-Chlorophenyl)-3-(1-(3-nitrobenzoyl)-1H-pyrazol-3-yl)pyridazin-4(1H)-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 | C20H12ClN5O4 |
| Molecular Weight | 421.79 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Chlorophenyl Standards
- 5-(4-Chlorophenyl)-N-((2-(2,2,2-trifluoroethoxy)pyridin-3-yl)methyl)nicotinamide (CAS 1026822-49-0)
- N-(2-(3-(4-Chlorophenyl)-6-oxopyridazin-1(6H)-yl)ethyl)-2-(trifluoromethyl)benzamide (CAS 921577-37-9)
- 3-((4-Chlorophenyl)sulfonyl)-2-hydroxy-2-methyl-N-(3-(trifluoromethyl)phenyl)propanamide (CAS 338424-60-5)
- N-(4-Chlorophenyl)-2-hydroxy-2-methyl-3-[3-(trifluoromethyl)benzenesulfonyl]propanamide (CAS 338424-16-1)
- 4-(4-Chlorophenyl)-1-(4-(3,4-dichlorophenyl)thiazol-2-yl)-1H-pyrazol-5-amine (CAS 957002-78-7)
- 2-(4-Chlorophenyl)-6-(1-(1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazol-5-yl)-4-methyl-1,2,4-triazine-3,5(2H,4H)-dione (CAS 477709-02-7)
- N-(4-(((4-chlorophenyl)thio)methyl)phenyl)-4-(trifluoromethyl)benzamide (CAS 321431-96-3)
- 3-(4-Chlorophenyl)-3-{[(9H-fluoren-9-ylmethoxy)-carbonyl]amino}propanoic acid (CAS 194471-87-9)
Recommended Standards
- 6-Chloro-4-((3-(trifluoromethyl)phenyl)sulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid (CAS 866134-76-1)
- 3-Chloro-N-[(Z)-2-(4-methylbenzenesulfonyl)-2-nitroethenyl]-5-(trifluoromethyl)pyridin-2-amine (CAS 1025578-57-7)
- CM 4620 (CAS 1713240-67-5)
- N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-4-fluoro-N'-methyl-N-(prop-2-yn-1-yl)benzenesulfonohydrazide (CAS 338748-66-6)
- (4-(Azetidin-1-ylmethyl)phenyl)(2-(methylthio)phenyl)methanone (CAS 898756-34-8)
- 4-Piperidinylmethyl 2-furoate hydrochloride (CAS 1219949-54-8)
- 3-(2-Methoxy-phenylamino)-propionitrile (CAS 27472-15-7)
- Methyl 6-bromo-2-methyl-2H-indazole-3-carboxylate (CAS 1216852-55-9)
- Methyl 6-bromopyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1263060-83-8)
- 2-Cyclopropyl-5-(3-(trifluoromethyl)phenyl)-1H-imidazole (CAS 345589-49-3)
- 2-Chloro-6-cyclopropoxy-N-methylaniline (CAS 1243367-81-8)
- 2-(Benzyloxy)-4-nitro-1-(trifluoromethyl)benzene (CAS 1007170-56-0)
- tert-Butyl 2-{[(tert-butoxy)carbonyl]amino}-4-chloropyridine-3-carboxylate (CAS 2140327-19-9)
- Neuropeptide SF (human) (CAS 192387-39-6)
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