[(1S)-1-[(cyclohexylamino)carbonyl]-2-methylpropyl]-Carbamic acid phenylmethyl ester CAS 17922-79-1
| CAS No. | 17922-79-1 |
| Molecular Formula | C19H28N2O3 |
| Molecular Weight | 332.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[(1S)-1-[(cyclohexylamino)carbonyl]-2-methylpropyl]-Carbamic acid phenylmethyl ester (C19H28N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies [(1S)-1-[(cyclohexylamino)carbonyl]-2-methylpropyl]-Carbamic acid phenylmethyl ester (CAS 17922-79-1), a certified reference material (molecular formula C19H28N2O3, MW 332.44 g/mol) for analytical method development and quality control.
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 | C19H28N2O3 |
| Molecular Weight | 332.44 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.) | 1962 |
| Nitrogen Atoms | 2 |
Related S Standards
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Recommended Standards
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- Tert-butyl 6-benzyl-8-(hydroxymethyl)-2,6-diazaspiro[3.4]Octane-2-carboxylate (CAS 1823228-59-6)
- 2-chloro-5-[1-(trifluoromethyl)cyclopropyl]pyridine (CAS 1803611-16-6)
- 1252992-35-0 2-[2-Chloro-3-(3,4-dimethoxy-phenyl)-acryloylamino]-benzoic acid (CAS 1252992-35-0)
- 4-(4-(4-Bromophenyl)-5-((3-fluorobenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine (CAS 477329-86-5)
- (6-Amino-5-(difluoromethyl)-4-fluoropyridin-2-yl)methanol (CAS 1804727-49-8)
- 2-Amino-7-bromo-1,3-benzoxazole-5-carboxamide (CAS 1820707-28-5)
- methyl 4-bromo-1H-1,3-benzodiazole-6-carboxylate (CAS 1354756-19-6)
- 2-(Pyrrolidin-2-ylidene)ethyl butyrate (CAS 113236-58-1)
- 3-((4-Chlorophenyl)sulfonyl)-N-(4-methoxybenzyl)-4-methyl-6-phenylpyridin-2-amine (CAS 339103-25-2)
- 4-Amino-3-(difluoromethoxy)benzoic acid (CAS 1096835-55-0)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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