(5α,17β)-N-Methoxy-N-methyl-3-oxo-4-azaandrost-1-ene-17-carboxamide CAS 138689-15-3
| CAS No. | 138689-15-3 |
| Molecular Formula | C21H32N2O3 |
| Molecular Weight | 360.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (5α,17β)-N-Methoxy-N-methyl-3-oxo-4-azaandrost-1-ene-17-carboxamide 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.
CATO supplies (5α,17β)-N-Methoxy-N-methyl-3-oxo-4-azaandrost-1-ene-17-carboxamide (CAS 138689-15-3), a certified reference material (molecular formula C21H32N2O3, MW 360.49 g/mol) for analytical method development and quality control.
The molecular framework of (5α,17β)-N-Methoxy-N-methyl-3-oxo-4-azaandrost-1-ene-17-carboxamide (C21H32N2O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C21H32N2O3 |
| Molecular Weight | 360.49 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- tert-Butyl 2-(2-(4-methylpiperazin-1-yl)pyridin-3-yl)piperidine-1-carboxylate (CAS 1352499-57-0)
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- Tert-butyl (9-benzyl-1-oxa-9-azaspiro[5.5]Undecan-4-yl)carbamate (CAS 1306739-43-4)
- 2,6-Bis(4-dimethylaminobenzylidene)cyclohexanone (CAS 18977-38-3)
- 3-((1,1-Dioxidobenzo[d]isothiazol-3(2H)-ylidene)amino)propyl 2-chloro-2-phenylacetate (CAS 356088-58-9)
- (R)-2-Amino-5,5,5-trifluoropentanoic acid (CAS 122565-29-1)
- tert-Butyl 4-(5-iodopyridin-2-yl)piperazine-1-carboxylate (CAS 497915-42-1)
- 5-Methyl-2-(4-nitrophenyl)imidazo[1,2-a]pyrimidin-7(1H)-one (CAS 65791-88-0)
- 1-(4-Hydroxy-1,2-oxazolidin-2-yl)-2-[4-(pyridin-2-yl)piperazin-1-yl]ethan-1-one (CAS 344277-32-3)
- Boc-D-Me-Arg(Tos)-OH (CAS 136642-84-7)
- 1-(5-Iodopyridin-2-yl)cyclobutanecarbonitrile (CAS 1257637-93-6)
- Pitavastatin Impurity 91 (CAS CATO-C4X-103791)
- Tert-butyl (r)-3-isobutyramidopiperidine-1-carboxylate (CAS 1286208-01-2)
- Peptide Impurity 27 (CAS 1350456-68-6)
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