1-OXA-5-AZASPIRO[2.5]OCTANE-5-CARBOXYLIC ACID, 1,1-DIMETHYLETHYL Ester 276872-90-3 tert-Butyl 1-oxa-5-azaspiro[2.5]octane-5-carboxylate CAS 276872-90-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 276872-90-3 |
| Molecular Formula | C11H19NO3 |
| Molecular Weight | 213.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-OXA-5-AZASPIRO[2.5]OCTANE-5-CARBOXYLIC ACID, 1,1-DIMETHYLETHYL Ester 276872-90-3 tert-Butyl 1-oxa-5-azaspiro[2.5]octane-5-carboxylate (CAS 276872-90-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H19NO3. Molecular weight: 213.27 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H19NO3 |
| Molecular Weight | 213.27 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related OXA Standards
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Recommended Standards
- (2S)-2-(2-oxoethyl)-1-Pyrrolidinecarboxylic acid 1,1-dimethylethyl ester 198493-30-0 (CAS 198493-30-0)
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- Tert-butyl(2s)-2-methyl-5-oxo-piperidine-1-carboxylate (CAS 2092036-29-6)
- cis-2-methyltetrahydrofuran-3-amine (CAS 149420-96-2)
- 2-(4-Hydroxypiperidin-1-yl)-N-(1-(thiophen-2-yl)ethyl)acetamide (CAS 1030765-44-6)
- 4-(2-Hydroxy-3-methoxypropyl)thiomorpholine-3-carboxylic acid (CAS 1543419-45-9)
- (5-Bromo-1H-indol-2-yl)methanamine (CAS 1341614-49-0)
- 2-(Difluoromethyl)-4-iodo-5-methylpyridine-3-methanol (CAS 1805414-02-1)
- Methyl 2-(1,2,3,4-tetrahydroisoquinolin-4-yl)acetate (CAS 742633-67-6)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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