6-(3-(3,5-Dichlorophenyl)-4-oxo-3,4-dihydrophthalazin-1-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one CAS 439096-96-5
| CAS No. | 439096-96-5 |
| Molecular Formula | C22H13Cl2N3O3 |
| Molecular Weight | 438.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 6-(3-(3,5-Dichlorophenyl)-4-oxo-3,4-dihydrophthalazin-1-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 439096-96-5), a certified reference material (molecular formula C22H13Cl2N3O3, MW 438.26 g/mol) for analytical method development and quality control.
6-(3-(3,5-Dichlorophenyl)-4-oxo-3,4-dihydrophthalazin-1-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one (C22H13Cl2N3O3) contains a steroid 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 6-(3-(3,5-Dichlorophenyl)-4-oxo-3,4-dihydrophthalazin-1-yl)-2H-benzo[b][1,4]oxazin-3(4H)-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 | C22H13Cl2N3O3 |
| Molecular Weight | 438.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 | 3 |
Related Dichlorophenyl Standards
- 2-(3,4-Dichlorophenyl)-N-(2-nitrophenyl)quinoline-4-carboxamide (CAS 332176-52-0)
- 2-(3,4-Dichlorophenyl)-N-(4-nitrophenyl)quinoline-4-carboxamide (CAS 332176-56-4)
- 2-(2,4-Dichlorophenyl)-1-{[3-(trifluoromethyl)phenyl]methoxy}-1H-imidazo[4,5-b]pyridine (CAS 338978-57-7)
- (E)-3-((3-(3,4-dichlorophenyl)imidazo[1,2-a]pyridin-8-yl)amino)-1-(4-methoxyphenyl)prop-2-en-1-one (CAS 338415-28-4)
- 4-(2,4-Dichlorophenyl)-6-(4-methylphenyl)-2-(4-methylpiperazin-1-yl)pyridine-3-carbonitrile (CAS 303984-85-2)
- 2-(2,4-Dichlorophenyl)-N-(4-ethoxyphenyl)quinoline-4-carboxamide (CAS 337501-85-6)
- 3-{3-[(2,4-dichlorophenyl)methoxy]phenyl}-1-(4-methylbenzoyl)-1H-pyrazole (CAS 477712-70-2)
- Methyl 3-{1-[(3,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-amido}thiophene-2-carboxylate (CAS 338782-95-9)
Recommended Standards
- Methyl 4-[4-(3,4-dichlorobenzoyl)piperazin-1-yl]-3-nitrobenzoate (CAS 341967-75-7)
- 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-bromobenzoic acid (CAS 1339688-25-3)
- (2E)-N-(2-(2,4-dichlorophenyl)benzo[d]oxazol-5-yl)-3-(3-nitrophenyl)prop-2-en-1-imine (CAS 330681-68-0)
- 2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-3-bromobenzoic acid (CAS 1339697-42-5)
- 2-Methyl-N-(piperidin-4-yl)pyridin-4-amine trihydrochloride (CAS 1713160-76-9)
- 2-Chloro-N-(5-cyclopropyl-1H-pyrazol-3-yl)pyrrolo[2,1-f][1,2,4]triazin-4-amine (CAS 918538-08-6)
- 2,2'-(Decanedioylbis(oxy))bis(3,5-dibromobenzoic acid) (CAS 74134-05-7)
- (R)-2-(3,4-dichlorophenyl)piperidine (CAS 1241682-95-0)
- 4-(1H-1,2,4-triazol-3-yl)benzoic acid hydrate (CAS 1262770-92-2)
- Urea-13C (CAS 58069-82-2)
- 5-(Isopropylamino)-1,3-dimethyl-1h-pyrazole-4-carbonitrile (CAS 1341641-27-7)
- 5,7-Dimethylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 933715-04-9)
- 4-Bromo-2-chloro-N-isopropylbenzenesulfonamide (CAS 1184192-52-6)
- (His32,Leu34)-Neuropeptide Y (32-36) (CAS 168916-68-5)
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