Methyl 5-[(E)-2-[4-chloro-3-(2-chlorophenyl)-[1,2]oxazolo[4,5-c]pyridin-7-yl]ethenyl]-3-(2-chlorophenyl)-1,2-oxazole-4-carboxylate CAS 321433-79-8
| CAS No. | 321433-79-8 |
| Molecular Formula | C25H14Cl3N3O4 |
| Molecular Weight | 526.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 526.76 g/mol gives Methyl 5-[(E)-2-[4-chloro-3-(2-chlorophenyl)-[1,2]oxazolo[4,5-c]pyridin-7-yl]ethenyl]-3-(2-chlorophenyl)-1,2-oxazole-4-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Methyl 5-[(E)-2-[4-chloro-3-(2-chlorophenyl)-[1,2]oxazolo[4,5-c]pyridin-7-yl]ethenyl]-3-(2-chlorophenyl)-1,2-oxazole-4-carboxylate (CAS 321433-79-8), a certified reference material (molecular formula C25H14Cl3N3O4, MW 526.76 g/mol) for analytical method development and quality control.
Based on its molecular formula C25H14Cl3N3O4, Methyl 5-[(E)-2-[4-chloro-3-(2-chlorophenyl)-[1,2]oxazolo[4,5-c]pyridin-7-yl]ethenyl]-3-(2-chlorophenyl)-1,2-oxazole-4-carboxylate contains a flavonoid 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 526.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C25H14Cl3N3O4 |
| Molecular Weight | 526.76 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- Cu-HHB (CAS 2243781-38-4)
- 3,3'-((Thiobis(4,1-phenylene))bis(sulfanediyl))bis(1-(thiophen-2-yl)propan-1-one) (CAS 868256-41-1)
- Dehydropachymic Acid (CAS 77012-31-8)
- 4-Methyl-2-oxo-2H-chromen-7-yl tetracosanoate (CAS 84434-52-6)
- Methyl 3-thiocyanato-1H-indole-6-carboxylate (CAS 885266-73-9)
- 1-{[1,2,4]triazolo[4,3-a]pyrazin-8-yl}piperidin-3-ol (CAS 1341835-26-4)
- 4-[1-(4-Nitrophenyl)-4-piperidyl]morpholine (CAS 867291-41-6)
- 7-methoxy-2-methyl-3-phenyl-4H-chromen-4-one (CAS 19725-44-1)
- 2-(Tert-butyl)-6-methylpyrimidin-4-amine (CAS 1250621-57-8)
- 3-(4,6-Dichloro-1H-indol-3-yl)propan-1-amine hydrochloride (CAS 1956376-29-6)
- Ceftazidime Impurity 63 (CAS CATO-C4X-121263)
- 2-(((5,6-Dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)methyl)thio)acetic acid (CAS 1096952-23-6)
- 1-[1-(3,4-Dimethyl-phenyl)-ethyl]-piperazine (CAS 625413-41-4)
- Peptide Impurity 06 (CAS CATO-CPTD788806)
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