8-tert-Butyl-4-(4-nitrobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid CAS 1326808-77-8
| CAS No. | 1326808-77-8 |
| Molecular Formula | C20H26N2O6 |
| Molecular Weight | 390.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
8-tert-Butyl-4-(4-nitrobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-77-8) is a high-purity analytical reference standard with the molecular formula C20H26N2O6 and a molecular weight of 390.43 g/mol.
Based on its molecular formula C20H26N2O6, 8-tert-Butyl-4-(4-nitrobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 390.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C20H26N2O6 |
| Molecular Weight | 390.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 6-((Benzyloxy)carbonyl)-2-(tert-butoxycarbonyl)-2,6-diazaspiro[3.4]octane-8-carboxylic acid (CAS 1251011-09-2)
- 8-tert-Butyl-4-(3-nitrobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326809-71-5)
- 7-Oxabicyclo[4.1.0]heptane-3,4-dicarboxylic acid, 3,4-bis(2-oxiranylmethyl) ester (CAS 1251010-72-6)
- Ethyl 2-(1-(tert-butoxycarbonyl)piperidin-4-yl)-7-hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 1356338-36-7)
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