N-Cycloheptylcarbamic Acid 1,1-Bis(4-Fluorophenyl)-2-Propynyl Ester CAS 20929-99-1
| CAS No. | 20929-99-1 |
| Molecular Formula | C23H23F2NO2 |
| Molecular Weight | 383.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), N-Cycloheptylcarbamic Acid 1,1-Bis(4-Fluorophenyl)-2-Propynyl Ester 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.
N-Cycloheptylcarbamic Acid 1,1-Bis(4-Fluorophenyl)-2-Propynyl Ester (CAS 20929-99-1), molecular formula C23H23F2NO2 and molecular weight 383.43 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H23F2NO2, N-Cycloheptylcarbamic Acid 1,1-Bis(4-Fluorophenyl)-2-Propynyl Ester contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 383.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C23H23F2NO2 |
| Molecular Weight | 383.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
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