Ethyl 9-oxo-9H-fluorene-1-carboxylate CAS 76118-81-5
| CAS No. | 76118-81-5 |
| Molecular Formula | C16H12O3 |
| Molecular Weight | 252.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 9-oxo-9H-fluorene-1-carboxylate.
Ethyl 9-oxo-9H-fluorene-1-carboxylate (CAS 76118-81-5) is a high-purity analytical reference standard with the molecular formula C16H12O3 and a molecular weight of 252.26 g/mol.
The molecular framework of Ethyl 9-oxo-9H-fluorene-1-carboxylate (C16H12O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ethyl 9-oxo-9H-fluorene-1-carboxylate 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 | C16H12O3 |
| Molecular Weight | 252.26 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
Recommended Standards
- Ethyl 5-(3-fluorophenyl)-1,3,4-thiadiazole-2-carboxylate (CAS 1984038-28-9)
- Ethyl 9-oxo-9H-fluorene-2-carboxylate (CAS 860215-06-1)
- Ethyl 5-(2-fluorophenyl)-1,3,4-thiadiazole-2-carboxylate (CAS 1989983-15-4)
- Ethyl 9-oxo-9H-fluorene-4-carboxylate (CAS 5447-75-6)
- 2,6-dibromo-4-(2-hydroxyethyl)phenol (CAS 303009-05-4)
- tert-Butyl (3-(benzyloxy)pyridin-2-yl)carbamate (CAS 1260776-75-7)
- [1-(4-methoxyphenyl)-1H-pyrazol-3-yl]methanamine hydrochloride (CAS 1193388-04-3)
- 1211390-33-8 5-Cyclopropyl-1H-1,2,4-triazole DTXSID20599042 (CAS 1211390-33-8)
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- Biotinyl-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802086-28-7)
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