17-[(4-tert-Butylphenyl)methoxy]-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione CAS 478029-51-5
| CAS No. | 478029-51-5 |
| Molecular Formula | C29H27NO3 |
| Molecular Weight | 437.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 437.53 g/mol gives 17-[(4-tert-Butylphenyl)methoxy]-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
17-[(4-tert-Butylphenyl)methoxy]-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione (CAS 478029-51-5), molecular formula C29H27NO3 and molecular weight 437.53 g/mol, is a CATO reference standard with documented purity and traceability.
17-[(4-tert-Butylphenyl)methoxy]-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione (C29H27NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C29H27NO3 |
| Molecular Weight | 437.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 4'-Nitro-4-dimethylaminoazobenzene (CAS 2491-74-9)
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- 3-(3,5-Dimethyl-1H-pyrazol-1-yl)-1-(3-hydroxyazetidin-1-yl)propan-1-one (CAS 1340317-10-3)
- N-(3-Chlorobenzyl)-N-methylpiperidin-4-amine hydrochloride (CAS 1261235-18-0)
- 4-Hydroxy-5-((4-methoxybenzyl)oxy)-1,4-dihydropyridine-2-carboxylic acid (CAS 1632286-08-8)
- H2N-PEG2-CH2COOtBu (CAS 1122484-77-8)
- 5-Chloro-1-methyl-1H-indazole (CAS 1379091-92-5)
- 1-(Dimethylamino)propan-2-yl 1,4-dimethyl-1H-pyrazole-5-carboxylate (CAS 792860-77-6)
- HA Peptide (CAS 92000-76-5)
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