Tert-butyl 5,5-difluoro-7-oxa-2-azaspiro[3.5]Nonane-2-carboxylate CAS 2306263-90-9
| CAS No. | 2306263-90-9 |
| Molecular Formula | C12H19F2NO3 |
| Molecular Weight | 263.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Tert-butyl 5,5-difluoro-7-oxa-2-azaspiro[3.5]Nonane-2-carboxylate (CAS 2306263-90-9), a certified reference material (molecular formula C12H19F2NO3, MW 263.28 g/mol) for analytical method development and quality control.
Structurally, Tert-butyl 5,5-difluoro-7-oxa-2-azaspiro[3.5]Nonane-2-carboxylate (C12H19F2NO3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 263.28 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Tert-butyl 5,5-difluoro-7-oxa-2-azaspiro[3.5]Nonane-2-carboxylate 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 | C12H19F2NO3 |
| Molecular Weight | 263.28 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- tert-Butyl 4-(difluoromethyl)-1-(hydroxymethyl)-2-azabicyclo[2.1.1]hexane-2-carboxylate (CAS 2649757-01-5)
- tert-butyl 6-(difluoromethyl)-6-hydroxy-2-azaspiro[3.3]heptane-2-carboxylate (CAS 2250243-65-1)
- Tert-butyl (3S,6S)-1,1-difluoro-6-(hydroxymethyl)-5-azaspiro[2.4]Heptane-5-carboxylate (CAS 2306249-09-0)
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