2-chloro-3-ethoxycyclobutan-1-one CAS 78119-91-2
| CAS No. | 78119-91-2 |
| Molecular Formula | C6H9ClO2 |
| Molecular Weight | 148.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 148.59 g/mol gives 2-chloro-3-ethoxycyclobutan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-chloro-3-ethoxycyclobutan-1-one (CAS 78119-91-2), molecular formula C6H9ClO2 and molecular weight 148.59 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 2-chloro-3-ethoxycyclobutan-1-one is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-chloro-3-ethoxycyclobutan-1-one 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.
Physical & Chemical Properties
| Molecular Formula | C6H9ClO2 |
| Molecular Weight | 148.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
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