5-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4H,5H,6H,7H-[1,2]oxazolo[4,5-c]pyridine-3-carboxylic acid CAS 2091858-74-9
| CAS No. | 2091858-74-9 |
| Molecular Formula | C22H18N2O5 |
| Molecular Weight | 390.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 5-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4H,5H,6H,7H-[1,2]oxazolo[4,5-c]pyridine-3-carboxylic acid (CAS 2091858-74-9), a certified reference material (molecular formula C22H18N2O5, MW 390.39 g/mol) for analytical method development and quality control.
Structurally, 5-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4H,5H,6H,7H-[1,2]oxazolo[4,5-c]pyridine-3-carboxylic acid (C22H18N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 390.39 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a certified reference material (CRM), 5-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4H,5H,6H,7H-[1,2]oxazolo[4,5-c]pyridine-3-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 | C22H18N2O5 |
| Molecular Weight | 390.39 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 2 |
Related H Standards
- 1-(1-(((9H-Fluoren-9-yl)methoxy)carbonyl)azetidin-3-yl)-1H-1,2,3-triazole-5-carboxylic acid (CAS 2138390-29-9)
- 1-(((9H-fluoren-9-yl)methoxy)carbonyl)-4-(trifluoromethyl)azetidine-2-carboxylic acid (CAS 2387595-78-8)
- (4-{[(9H-Fluoren-9-ylmethoxy)carbonyl]-amino}phenoxy)acetic acid (CAS 1217863-10-9)
- 2-(3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)phenoxy)acetic acid (CAS 1344323-46-1)
- 5-(((9h-Fluoren-9-yl)methoxy)carbonyl)-4,5,6,7-tetrahydro-3h-imidazo[4,5-c]pyridine-6-carboxylic acid (CAS 1531550-29-4)
- 5-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-methoxybenzoic acid (CAS 165073-03-0)
- 2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-(pyrimidin-2-yl)propanoic acid (CAS 1690821-45-4)
- 2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-(pyrimidin-4-yl)propanoic acid (CAS 1691032-13-9)
Recommended Standards
- 5,5'-(1,4-Phenylenebis(ethyne-2,1-diyl))diisophthalaldehyde (CAS 2380275-60-3)
- Ethyl 3-[(4-nitrophenyl)methoxy]pyrido[1,2-a]indole-10-carboxylate (CAS 339020-39-2)
- 5-(4-Aminophenoxy)-2-(3,4-dimethoxyphenyl)isoindoline-1,3-dione (CAS 310451-93-5)
- Fmoc-ACPO-OH (CAS 204322-11-2)
- 3-Bromo-4-methyl-5-nitrobenzenesulfonamide (CAS 1343740-13-5)
- Methyl 4-oxo-4H-benzo[4,5]thiazolo[3,2-a]pyrimidine-2-carboxylate (CAS 58099-49-3)
- 2-Bromo-2,4-dichloroacetophenone (CAS 2631-72-3)
- 3-Acetamido-4-chlorobenzoic acid (CAS 101870-46-6)
- tert-Butyl 4-(5-acetylpyrimidin-2-yl)piperazine-1-carboxylate (CAS 1703794-90-4)
- Ginsenoside F1 (CAS 53963-43-2)
- 2-Methyl-1H-benzo[d]imidazol-5-ol (CAS 41292-66-4)
- CAS CATO-CQCM102175 (CAS CATO-CQCM102175)
- tert-Butyl (S)-(1,2,3,4-tetrahydroquinolin-3-yl)carbamate (CAS 1187928-06-8)
- Des-Trp25-Tirzepatide (CAS CATO-CPTD788948)
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