2-(3-Chloro-2-methylphenyl)-4-(3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one CAS 478045-84-0
| CAS No. | 478045-84-0 |
| Molecular Formula | C23H14Cl2N4O2 |
| Molecular Weight | 449.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-(3-Chloro-2-methylphenyl)-4-(3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one 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.
CATO supplies 2-(3-Chloro-2-methylphenyl)-4-(3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one (CAS 478045-84-0), a certified reference material (molecular formula C23H14Cl2N4O2, MW 449.29 g/mol) for analytical method development and quality control.
Based on its molecular formula C23H14Cl2N4O2, 2-(3-Chloro-2-methylphenyl)-4-(3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 449.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C23H14Cl2N4O2 |
| Molecular Weight | 449.29 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 2-(3-Chloro-2-methylphenyl)-4-(3-(2-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one (CAS 478045-85-1)
- 2-(3-Chloro-2-methylphenyl)-4-(3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl)phthalazin-1(2H)-one (CAS 478045-83-9)
- 4-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)methyl)-N-(4-chlorophenyl)piperazine-1-carbothioamide (CAS 1311278-34-8)
- 1-(3-Chloro-5-trifluoromethyl-pyridin-2-ylmethyl)-piperidine-4-carbothioic acid S-(4-chloro-phenyl) ester (CAS 1311279-18-1)
- Chloro(ethylcyclopentadienyl)(triphenylphosphinenickel(II) (CAS 149272-90-2)
- (E)-({1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrazol-5-yl}methylidene)[(2,6-dichlorophenyl)methoxy]amine (CAS 318958-92-8)
- N-(2-chloro-5-(trifluoromethyl)phenyl)-3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamide (CAS 349131-13-1)
- 2-{[(2-chloro-6-fluorophenyl)methyl]sulfanyl}-4-(4-methylphenyl)-1H,4H,5H-indeno[1,2-d]pyrimidin-5-one (CAS 691873-09-3)
Recommended Standards
- Methyl 6-Bromo-2,6-dideoxy-α-D-ribo-hexopyranoside Dibenzoate (CAS 18933-67-0)
- N-[(2,4-dimethoxyphenyl)methyl]-7-(iodomethyl)-3-methyl-1,5-naphthyridin-2-amine (CAS 2826206-85-1)
- Europium 2,4-pentanedionate (CAS 14284-86-7)
- 1380572-59-7 3-[2-(4-Benzyloxy-phenyl)-2-oxo-ethylidene]-7-bromo-3,4-dihydro-1H-quinoxalin-2-one (CAS 1380572-59-7)
- 4-Neopentylpiperidin-4-ol (CAS 1519280-91-1)
- 1,1,2,2-Tetrakis(4-(bromomethyl)phenyl)ethene (CAS 67448-47-9)
- 7,8-Dihydro-5H-pyrano[4,3-d]pyrimidine-4-carboxylic acid (CAS 1468881-88-0)
- Methyl 3-fluoro-1H-indole-6-carboxylate (CAS 1252782-39-0)
- N-(4-chlorophenyl)-N-phenylnaphthalen-1-amine (CAS 138310-83-5)
- n-(4,5,6,7-Tetrahydrothiazolo[5,4-c]pyridin-2-yl)thiophene-2-carboxamide hydrochloride (CAS 1351654-32-4)
- (2R,5S)-Piperazine-2,5-dicarboxylic acid (CAS 96705-92-9)
- 2-Chloro-4-(methylthio)pyrimidine (CAS 49844-93-1)
- Canagliflozin Impurity 15 (CAS 1830346-16-1)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com