| CAS No. | 22228-23-5 |
| Molecular Formula | C11H10O |
| Molecular Weight | 158.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 158.20 g/mol gives Spiro[cyclopropane-1,2-indan]-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Spiro[cyclopropane-1,2-indan]-1-one (CAS 22228-23-5), molecular formula C11H10O and molecular weight 158.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H10O, Spiro[cyclopropane-1,2-indan]-1-one contains a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 158.20 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.
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.
| Molecular Formula | C11H10O |
| Molecular Weight | 158.20 g/mol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |