Methyl 3-(2-chlorophenyl)-5-[1-(4-nitrophenyl)-1H-1,2,3-triazol-4-yl]-1,2-oxazole-4-carboxylate CAS 477890-11-2
| CAS No. | 477890-11-2 |
| Molecular Formula | C19H12ClN5O5 |
| Molecular Weight | 425.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Methyl 3-(2-chlorophenyl)-5-[1-(4-nitrophenyl)-1H-1,2,3-triazol-4-yl]-1,2-oxazole-4-carboxylate (CAS 477890-11-2), a certified reference material (molecular formula C19H12ClN5O5, MW 425.78 g/mol) for analytical method development and quality control.
Methyl 3-(2-chlorophenyl)-5-[1-(4-nitrophenyl)-1H-1,2,3-triazol-4-yl]-1,2-oxazole-4-carboxylate (C19H12ClN5O5) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Methyl 3-(2-chlorophenyl)-5-[1-(4-nitrophenyl)-1H-1,2,3-triazol-4-yl]-1,2-oxazole-4-carboxylate 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 | C19H12ClN5O5 |
| Molecular Weight | 425.78 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Methyl Standards
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- N-(5-(3-(2-Chlorophenyl)acryloyl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)pyrazine-2-carboxamide (CAS 1351663-87-0)
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Recommended Standards
- 1,1,2-Triethyl 1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]ethane-1,1,2-tricarboxylate (CAS 400082-29-3)
- 5-Bromo-2,6-diiodopyridin-3-ol (CAS 1040682-54-9)
- N-[bis(diethoxyphosphoryl)methyl]-1-(3-chlorophenyl)methanimine (CAS 1132710-10-1)
- 2-Bromo-4,6-diiodopyridin-3-ol (CAS 129611-33-2)
- Methyl 6-propoxy-1H-indole-2-carboxylate (CAS 881041-22-1)
- 1-(7-Nitro-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-phenylethan-1-ol (CAS 886493-42-1)
- 7-Hydroxyquinoline-6-carboxylic acid (CAS 1227608-04-9)
- Linagliptin Impurity 15 (CAS 1791405-13-4)
- 2-Methyl-4-(pyridin-2-yl)pyrimidine (CAS 25194-63-2)
- 4-{[(4-chlorophenyl)amino]methylidene}-3-phenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 338975-62-5)
- 1,2,3,4-Tetrahydroquinoline-5-sulfonyl fluoride (CAS 2377299-19-7)
- n-(2-Benzoylphenyl)-3-chloropropanamide (CAS 950029-14-8)
- 4-Bromo-N-(2-fluorobenzyl)-3-methylaniline (CAS 1019615-05-4)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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