N-(9H-Fluoren-2-yl)-4-methylbenzamide CAS 74925-70-5
| CAS No. | 74925-70-5 |
| Molecular Formula | C21H17NO |
| Molecular Weight | 299.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of N-(9H-Fluoren-2-yl)-4-methylbenzamide is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
N-(9H-Fluoren-2-yl)-4-methylbenzamide (CAS 74925-70-5) is a high-purity analytical reference standard with the molecular formula C21H17NO and a molecular weight of 299.37 g/mol.
Based on its molecular formula C21H17NO, N-(9H-Fluoren-2-yl)-4-methylbenzamide contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 299.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C21H17NO |
| Molecular Weight | 299.37 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 | 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.) | 1978 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- N-((1-Cyclohexyl-1H-tetrazol-5-yl)methyl)-2-phenylacetamide (CAS 921104-47-4)
- N1-(2-(Dimethylamino)-2-(naphthalen-1-yl)ethyl)-N2-methyloxalamide (CAS 941871-88-1)
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