1-Oxo-2-(4-phenoxyphenyl)-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole-7-carboxylic acid CAS 1005151-01-8
| CAS No. | 1005151-01-8 |
| Molecular Formula | C21H17NO5 |
| Molecular Weight | 363.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-Oxo-2-(4-phenoxyphenyl)-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole-7-carboxylic acid (CAS 1005151-01-8), molecular formula C21H17NO5 and molecular weight 363.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-Oxo-2-(4-phenoxyphenyl)-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole-7-carboxylic acid (C21H17NO5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 1-Oxo-2-(4-phenoxyphenyl)-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole-7-carboxylic acid 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 | C21H17NO5 |
| Molecular Weight | 363.36 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- (2-Phenoxyphenyl)(4-(thiophen-2-yl)piperidin-1-yl)methanone (CAS 1396878-31-1)
- 1,2-Bis(4-phenoxyphenyl)ethyne (CAS 77384-56-6)
- 2-[(E)-[(4-Phenoxyphenyl)methylidene]amino]-5-phenylfuran-3-carbonitrile (CAS 478033-33-9)
- 3-(4-phenoxyphenyl)-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 438029-86-8)
- 1-Butyl-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 2213398-77-5)
- N-(4-phenoxyphenyl)-2-(1,2,3,4-tetrahydroisoquinolin-1-yl)acetamide (CAS 338793-51-4)
- 1-(4-Phenoxyphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264042-88-7)
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Recommended Standards
- Cefuroxime Sodium EP Impurity H(Cefuroxime Axetil EP Impurity E) (CAS 947723-87-7)
- Ethyl 2-((4-ethyl-5-(1-methyl-5-(trifluoromethyl)-1h-pyrazol-3-yl)-4h-1,2,4-triazol-3-yl)thio)acetate (CAS 1005680-56-7)
- Cefuroxime Impurity 79 (CAS CATO-C4X-124579)
- Ethyl 2-(4-(difluoromethyl)-6-(1,3-dimethyl-1H-pyrazol-4-yl)-3-methyl-1H-pyrazolo[3,4-b]pyridin-1-yl)acetate (CAS 1052634-25-9)
- 2-methylspiro[indole-3,4’-piperidine] (CAS 1225388-67-9)
- 2-Chloro-4-methoxynicotinic Acid (CAS 394729-98-7)
- [(4-Methylphenyl)amino]acetic acid (CAS 21911-69-3)
- Valproic Acid Impurity 14 (CAS 21269-49-8)
- Bis(1-(pyridin-3-yl)piperidin-2-yl)methane (CAS 370582-57-3)
- 6-Bromo-3-chloro-2-nitropyridine (CAS 1805485-96-4)
- (R)-tert-Butyl 3-(tosyloxy)piperidine-1-carboxylate (CAS 1354006-69-1)
- (2-Benzyl-2-azabicyclo[2.2.1]hept-7-yl)methanamine (CAS 404830-41-7)
- Carvedilol impurity 9 (CAS 1198090-71-9)
- Tau Peptide (379-408) trifluoroacetate salt (CAS 1246357-53-8)
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