Rac-(1r,2r)-2-(4-nitrophenyl)cyclopropane-1-carboxylic acid, trans CAS 16633-46-8
| CAS No. | 16633-46-8 |
| Molecular Formula | C10H9NO4 |
| Molecular Weight | 207.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Rac-(1r,2r)-2-(4-nitrophenyl)cyclopropane-1-carboxylic acid, trans is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Rac-(1r,2r)-2-(4-nitrophenyl)cyclopropane-1-carboxylic acid, trans (CAS 16633-46-8) is a high-purity analytical reference standard with the molecular formula C10H9NO4 and a molecular weight of 207.18 g/mol.
Based on its molecular formula C10H9NO4, Rac-(1r,2r)-2-(4-nitrophenyl)cyclopropane-1-carboxylic acid, trans contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C10H9NO4 |
| Molecular Weight | 207.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
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