1-Oxo-2-(o-tolyl)-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole-7-carboxylic acid CAS 436810-98-9
| CAS No. | 436810-98-9 |
| Molecular Formula | C16H15NO4 |
| Molecular Weight | 285.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-Oxo-2-(o-tolyl)-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole-7-carboxylic acid (CAS 436810-98-9), a certified reference material (molecular formula C16H15NO4, MW 285.29 g/mol) for analytical method development and quality control.
1-Oxo-2-(o-tolyl)-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole-7-carboxylic acid (C16H15NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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.
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 | C16H15NO4 |
| Molecular Weight | 285.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 14-Hydroxynormorphinone (CAS 84116-46-1)
- 2-(((Benzyloxy)carbonyl)amino)-2-phenylacetic acid (CAS 60584-76-1)
- 1,4-Dimethoxy-2-(4-nitrostyryl)benzene (CAS 5529-38-4)
- 2-((4-Ethoxyphenyl)carbamoyl)benzoic acid (CAS 7614-49-5)
- 6-(Ethylamino)-3-methyl-5-nitropyrimidine-2,4(1H,3H)-dione (CAS 887570-48-1)
- 3-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-6-(trifluoromethyl)quinolin-4(1H)-one (CAS 478033-68-0)
- 3'-(Trifluoromethyl)-N-(4-((trifluoromethyl)sulfonyl)phenyl)-3,6-dihydro-2H-[1,2'-bipyridine]-4-carboxamide (CAS 824982-41-4)
- Mirabegron Impurity 140 (CAS CATO-C4X-1032140)
- 4-[6-(3-Methoxyphenyl)-pyridin-3-yl]-pyrimidin-2-ylamine (CAS 2088942-82-7)
- 6-Fluoro-2,3-dimethylquinoxaline (CAS 17635-24-4)
- 4-Methoxybiphenyl (CAS 613-37-6)
- 7-Bromo-8-fluoroquinazolin-4(3H)-one (CAS 2089650-78-0)
- Dexmedetomidine Impurity 17 (CAS 33967-19-0)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
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