9H-Fluorene-4-carboxylic acid CAS 6954-55-8
| CAS No. | 6954-55-8 |
| Molecular Formula | C14H10O2 |
| Molecular Weight | 210.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
9H-Fluorene-4-carboxylic acid (CAS 6954-55-8) is a high-purity analytical reference standard with the molecular formula C14H10O2 and a molecular weight of 210.23 g/mol.
The molecular framework of 9H-Fluorene-4-carboxylic acid (C14H10O2) 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.
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 | C14H10O2 |
| Molecular Weight | 210.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related H Standards
- 9h-Fluorene-3-carboxylic acid (CAS 92151-76-3)
- 9H-Fluorene-3-carbaldehyde oxime (CAS 909236-15-3)
- 9H-Fluorene-4-carboxamide (CAS 28322-01-2)
- Fluorene-9-carboxamide (CAS 7471-95-6)
- 30084-90-3 9H-Fluorene-2-carboxaldehyde Fluorene-2-carbaldehyde Fluorene-2-carboxaldehyde 4-07-00-01656 (Beilstein Handbook Reference) BRN 2255852 EINECS 250-035-2 2-Fluorenecarboxaldehyde (CAS 30084-90-3)
- 9H-Fluorene-3,9-diol (CAS 1381944-22-4)
- 9H-fluorene-2,7-diol (CAS 5043-54-9)
- 9H-Fluorene-2,9-diamine (CAS 7148-37-0)
Recommended Standards
- 9H-xanthene-9-carbaldehyde (CAS 72240-47-2)
- 9H-carbazole-1-carboxamide (CAS 414905-73-0)
- 9-MEthylpyrimido[4,5-b]quinolin-2-amine (CAS 582334-03-0)
- 9-Benzyl-9H-purine (CAS 25491-56-9)
- 7-Methoxy-1-methyl-1,2,3,4-tetrahydroisoquinolin-6-ol hydrochloride (CAS 79906-89-1)
- 2-(4-(Methylsulfonyl)piperazin-1-yl)propan-1-ol (CAS 72388-15-9)
- N'-[(1E)-(4-Methoxyphenyl)methylidene]-2H-1,3-benzodioxole-5-carbohydrazide (CAS 270575-94-5)
- N-(3,5-Dichlorophenyl)-2-((4-ethyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 573696-14-7)
- 5-(4-(4-Fluorobenzoyl)piperazin-1-yl)-6-phenylpyridazin-3(2H)-one (CAS 477863-52-8)
- 5-((3-Methyl-1h-pyrazol-1-yl)methyl)-1,3,4-oxadiazole-2-thiol (CAS 1004643-57-5)
- Amlodipine Impurity 98 (CAS CATO-C4X-109598)
- 5,5'-Bi-1H-benzimidazole (CAS 3097-03-8)
- 2-amino-1-[4-(difluoromethoxy)phenyl]ethan-1-ol (CAS 926207-03-6)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
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