2-{16,18-dioxo-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2(7),3,5,9(14),10,12-hexaen-17-yl}-N-(prop-2-en-1-yl)acetamide CAS 478029-47-9
| CAS No. | 478029-47-9 |
| Molecular Formula | C23H20N2O3 |
| Molecular Weight | 372.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-{16,18-dioxo-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2(7),3,5,9(14),10,12-hexaen-17-yl}-N-(prop-2-en-1-yl)acetamide is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-{16,18-dioxo-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2(7),3,5,9(14),10,12-hexaen-17-yl}-N-(prop-2-en-1-yl)acetamide (CAS 478029-47-9), molecular formula C23H20N2O3 and molecular weight 372.42 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H20N2O3, 2-{16,18-dioxo-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2(7),3,5,9(14),10,12-hexaen-17-yl}-N-(prop-2-en-1-yl)acetamide contains a steroid 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 372.42 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.
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 | C23H20N2O3 |
| Molecular Weight | 372.42 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
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- 4,4-Dimethyl-1,3-dioxolan-2-one (CAS 4437-69-8)
- 2-[3-(Boc-amino)cyclobutyl]acetic Acid (CAS 1638772-19-6)
- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
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