1-[Chloro(difluoro)acetyl]-4,4-dimethyl-2-azetidinone CAS 707-58-4
| CAS No. | 707-58-4 |
| Molecular Formula | C7H8ClF2NO2 |
| Molecular Weight | 211.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-[Chloro(difluoro)acetyl]-4,4-dimethyl-2-azetidinone (C7H8ClF2NO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 1-[Chloro(difluoro)acetyl]-4,4-dimethyl-2-azetidinone (CAS 707-58-4), a certified reference material (molecular formula C7H8ClF2NO2, MW 211.59 g/mol) for analytical method development and quality control.
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), 1-[Chloro(difluoro)acetyl]-4,4-dimethyl-2-azetidinone 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 | C7H8ClF2NO2 |
| Molecular Weight | 211.59 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
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- ethyl 3-(2-ethoxy-2-oxoethyl)-1H-indole-2-carboxylate (CAS 63158-60-1)
- 4-Azaspiro[2.5]Octan-7-one (CAS 1369146-36-0)
- 3,6-Dibromo-2-fluorophenylacetic acid (CAS 1803785-23-0)
- 2-(2-Bromo-4-fluorophenoxy)propanoic acid (CAS 1579-73-3)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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