Methyl 5-[(E)-2-[4-(4-chlorophenoxy)-3-(2,6-dichlorophenyl)-[1,2]oxazolo[4,5-c]pyridin-7-yl]ethenyl]-3-(2,6-dichlorophenyl)-1,2-oxazole-4-carboxylate CAS 338773-21-0
| CAS No. | 338773-21-0 |
| Molecular Formula | C31H16Cl5N3O5 |
| Molecular Weight | 687.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Methyl 5-[(E)-2-[4-(4-chlorophenoxy)-3-(2,6-dichlorophenyl)-[1,2]oxazolo[4,5-c]pyridin-7-yl]ethenyl]-3-(2,6-dichlorophenyl)-1,2-oxazole-4-carboxylate is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 687.74 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Methyl 5-[(E)-2-[4-(4-chlorophenoxy)-3-(2,6-dichlorophenyl)-[1,2]oxazolo[4,5-c]pyridin-7-yl]ethenyl]-3-(2,6-dichlorophenyl)-1,2-oxazole-4-carboxylate (CAS 338773-21-0) is a high-purity analytical reference standard with the molecular formula C31H16Cl5N3O5 and a molecular weight of 687.74 g/mol.
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.
CATO manufactures Methyl 5-[(E)-2-[4-(4-chlorophenoxy)-3-(2,6-dichlorophenyl)-[1,2]oxazolo[4,5-c]pyridin-7-yl]ethenyl]-3-(2,6-dichlorophenyl)-1,2-oxazole-4-carboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C31H16Cl5N3O5 |
| Molecular Weight | 687.74 g/mol |
| 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) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 2-Methylnaphthalene-bis(HexachlorocyclopentadienE)adduct (CAS 4605-91-8)
- 5-[(3aR,8aR)-Tetrahydro-2,2-dimethyl-4,4,8,8-tetraphenyl-1,3-dioxolo[4,5-e][1,3,2]dioxaphosphepin-6-yl]-5H-dibenz[b,f]azepine (CAS 1092695-14-1)
- 2'-Deoxy-5'-O-DMT-N (CAS 115388-94-8)
- 4,5,6,7-Tetraiodo-3H-benzo[c][1,2]oxathiol-3-one 1,1-dioxide (CAS 1745-83-1)
- N1-(furan-2-ylmethyl)ethane-1,2-diamine (CAS 5700-58-3)
- 2-Ethyl-5-nitroindazole (CAS 5228-50-2)
- Ethyl 2-((chlorosulfonyl)methyl)benzoate (CAS 221631-54-5)
- tert-Butyl (R)-3-((tert-butoxycarbonyl)amino)-5-iodopentanoate (CAS 2079071-78-4)
- 3-Cyclobutyl-1-methyl-1H-1,2,4-triazol-5-amine (CAS 1553917-14-8)
- (3-exo)-8,8-Difluorobicyclo[3.2.1]octane-3-carboxylic acid (CAS 1447972-21-5)
- 3-Trityl-1H-indole (CAS 32863-87-9)
- cis-2-(difluoromethyl)cyclopropanecarboxylic acid (CAS 2278284-80-1)
- 2-(Oxazol-4-yl)ethan-1-amine (CAS 227475-42-5)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
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