Tert-butyl 10-fluoro-1,8-diazaspiro[5.5]Undecane-1-carboxylate CAS 1263178-85-3
| CAS No. | 1263178-85-3 |
| Molecular Formula | C14H25FN2O2 |
| Molecular Weight | 272.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Tert-butyl 10-fluoro-1,8-diazaspiro[5.5]Undecane-1-carboxylate (CAS 1263178-85-3), molecular formula C14H25FN2O2 and molecular weight 272.36 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, Tert-butyl 10-fluoro-1,8-diazaspiro[5.5]Undecane-1-carboxylate is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 272.36 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.
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.
Physical & Chemical Properties
| Molecular Formula | C14H25FN2O2 |
| Molecular Weight | 272.36 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor) |
| 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 DMSO, DMF, methanol |
| 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.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- Tert-butyl 4-fluoro-2,9-diazaspiro[5.5]Undecane-2-carboxylate (CAS 1263178-84-2)
- Tert-butyl 4-fluoro-2,9-diazaspiro[5.5]Undecane-9-carboxylate (CAS 1263181-71-0)
- Tert-butyl 5-fluoro-2,8-diazaspiro[5.5]Undecane-2-carboxylate (CAS 1263178-74-0)
- (2E)-1-(4-Ethoxyphenyl)-3-(5-methylthiophen-2-yl)prop-2-en-1-one (CAS 1287289-43-3)
- 4-Chloro-3-nitrobenzophenone (CAS 56107-02-9)
- 3'-Methoxy-2-methyl-[1,1'-biphenyl]-4-carbaldehyde (CAS 1506675-64-4)
- 1-(3-Chloropropoxy)-4-fluorobenzene (CAS 1716-42-3)
- (4-Methoxy-phenyl)-morpholin-4-yl-acetic acid; hydrochloride (CAS 93475-27-5)
- 1-Methylpiperidine-3,3-diol hydrochloride (CAS 102014-40-4)
- Tert-butyl 7-fluoro-2,9-diazaspiro[5.5]Undecane-9-carboxylate (CAS 1785048-75-0)
- 3-(5-Bromo-7-fluoro-1-oxoisoindolin-2-yl)piperidine-2,6-dione (CAS 2438240-68-5)
- N-(2,5-Dichlorophenyl)-4-(pyrimidin-2-yloxy)piperidine-1-carboxamide (CAS 823782-73-6)
- (3R,6R)-4-(tert-Butoxycarbonyl)-6-(trifluoromethyl)morpholine-3-carboxylic acid (CAS 2694057-43-5)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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