5-Chloro-2-oxo-1,2-dihydropyridin-3-yl benzo[d]oxazole-3(2H)-carboxylate CAS 61672-63-7
| CAS No. | 61672-63-7 |
| Molecular Formula | C13H7ClN2O4 |
| Molecular Weight | 290.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Chloro-2-oxo-1,2-dihydropyridin-3-yl benzo[d]oxazole-3(2H)-carboxylate (CAS 61672-63-7), molecular formula C13H7ClN2O4 and molecular weight 290.66 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 5-Chloro-2-oxo-1,2-dihydropyridin-3-yl benzo[d]oxazole-3(2H)-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 290.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H7ClN2O4 |
| Molecular Weight | 290.66 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- Benzoxazole, 4-(2-chloro-4-nitrophenoxy)- (CAS 1033810-10-4)
- 5-(Chloromethyl)-3-(4-(difluoromethoxy)-3-methoxyphenyl)-1,2,4-oxadiazole (CAS 852399-92-9)
- (2-(Pyrrolidin-1-yl)pyridin-4-yl)methanol (CAS 906352-65-6)
- 1-(2-((Dimethylamino)methyl)-4-methoxyphenyl)ethanone (CAS 77973-25-2)
- 3-[2-(difluoromethoxy)phenyl]-3-oxopropanenitrile (CAS 1016690-71-3)
- Baclofen Impurity 37 (CAS CATO-C4X-101237)
- 2'-Amino-3,3'-diphenyl-[1,1'-binaphthalen]-2-ol (CAS 1242771-09-0)
- 2-(Aminomethyl)-1-(3-bromothiophen-2-yl)butan-1-ol (CAS 1489925-94-1)
- 2-Chloro-5-cyclopropoxy-N,N-dimethylnicotinamide (CAS 1243329-64-7)
- 3-(Pyrrolidin-3-yloxy)benzoic acid (CAS 1123169-10-7)
- Baxdrostat Impurity 21 (CAS 1428652-31-6)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
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