tert-Butyl (4-oxocyclohex-2-en-1-yl)carbamate CAS 205877-92-5
| CAS No. | 205877-92-5 |
| Molecular Formula | C11H17NO3 |
| Molecular Weight | 211.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
tert-Butyl (4-oxocyclohex-2-en-1-yl)carbamate (CAS 205877-92-5), molecular formula C11H17NO3 and molecular weight 211.26 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H17NO3, tert-Butyl (4-oxocyclohex-2-en-1-yl)carbamate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 211.26 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.
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.
As a certified reference material (CRM), tert-Butyl (4-oxocyclohex-2-en-1-yl)carbamate 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 | C11H17NO3 |
| Molecular Weight | 211.26 g/mol |
| Appearance | Off-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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 1 |
Recommended Standards
- tert-Butyl (3-ethylfuran-2-yl)carbamate (CAS 704913-86-0)
- tert-Butyl (5-oxospiro[2.3]hexan-1-yl)carbamate (CAS 2138390-08-4)
- tert-Butyl (2S,4R)-2-ethynyl-4-hydroxypyrrolidine-1-carboxylate (CAS 275387-80-9)
- tert-butyl 1-formyl-2-azabicyclo[2.1.1]hexane-2-carboxylate (CAS 467454-50-8)
- 4-(4-Ethoxy-1,2,5-thiadiazol-3-yl)morpholine (CAS 329227-79-4)
- 1-tert-Butyl 3-ethyl 5-oxopyrrolidine-1,3-dicarboxylate (CAS 1499061-82-3)
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