2'-Oxo-1',2'-dihydrospiro[cyclopropane-1,3'-pyrido[2,3-b][1,4]oxazine]-7'-carboxylic acid CAS 2765502-89-2
| CAS No. | 2765502-89-2 |
| Molecular Formula | C10H8N2O4 |
| Molecular Weight | 220.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H8N2O4, 2'-Oxo-1',2'-dihydrospiro[cyclopropane-1,3'-pyrido[2,3-b][1,4]oxazine]-7'-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 220.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
2'-Oxo-1',2'-dihydrospiro[cyclopropane-1,3'-pyrido[2,3-b][1,4]oxazine]-7'-carboxylic acid (CAS 2765502-89-2), molecular formula C10H8N2O4 and molecular weight 220.18 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C10H8N2O4 |
| Molecular Weight | 220.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 2 |
Related Oxo Standards
- 2,4-Dihydrospiro[1,5-benzodioxepine-3,1'-cyclopropane]-6-boronic acid (CAS 2096335-53-2)
- 3'-Methyl-2',7'-dihydrospiro[cyclohexane-1,4'-pyrazolo[3,4-b]pyridin]-6'(5'H)-one (CAS 1029475-77-1)
- 1-Methyl-1,4-dihydrospiro[indazole-5,4'-piperidin]-7(6H)-one (CAS 1332368-70-3)
- 3,4-dihydrospiro[1-benzopyran-2,4'-oxan]-4-amine (CAS 934554-45-7)
- 6'-Oxo-5',6'-dihydrospiro[cyclopropane-1,7'-pyridazino[3,4-b][1,4]oxazine]-3'-carboxylic acid (CAS 2765503-12-4)
- 3-Oxo-3,4-dihydrospiro[benzo[b][1,4]oxazine-2,1'-cyclopropane]-6-carboxylic acid (CAS 2765502-85-8)
- Ethyl 2,3-dihydrospiro[indene-1,2'-oxirane]-3'-carboxylate (CAS 67197-73-3)
- 1',2'-dihydrospiro[cyclohexane-1,3'-pyrrolo[2,3-b]pyridine]-2',4-dione (CAS 1638768-64-5)
Recommended Standards
- 2-Methyl-5-nitro-1H-indole-3-carboxylic acid (CAS 773869-64-0)
- 3-(2-Methoxyphenyl)-1,2,4-oxadiazole-5-carboxylic acid (CAS 944896-75-7)
- 2-Fluoro-5-sulfobenzoic acid (CAS 881487-27-0)
- 3-(3-Pyrazin-2-yl-1,2,4-oxadiazol-5-yl)propanoic acid (CAS 849925-05-9)
- 1-((5-Amino-2-methoxyphenyl)sulfonyl)piperidin-4-ol (CAS 1039843-57-6)
- 4-Ethylbenzofuran-3(2H)-one (CAS 83952-89-0)
- (4-Hydroxy-3-methylphenyl)acetic Acid Methyl Ester (CAS 64360-47-0)
- 1-Chloro-2-methylhexane (CAS 86525-68-0)
- (E)-N-(4-(N-(4,6-dimethylpyrimidin-2-yl)sulfamoyl)phenyl)-3-(p-tolyl)acrylamide (CAS 873307-22-3)
- (3-Fluoro-5-methylpyridin-2-yl)methanol (CAS 1263057-27-7)
- 2-Chloro-7-cyclopentyl-5-isopropyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 959799-11-2)
- 7-Chloro-4-methoxyindolin-2-one (CAS 1368597-34-5)
- tert-Butyl bicyclo[2.2.1]heptan-7-ylcarbamate (CAS 871942-97-1)
- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
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