(R)-2-Amino-4-oxo-4-(tritylamino)butanoic acid CAS 19892-86-5
| CAS No. | 19892-86-5 |
| Molecular Formula | C23H22N2O3 |
| Molecular Weight | 374.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (R)-2-Amino-4-oxo-4-(tritylamino)butanoic acid (CAS 19892-86-5), a certified reference material (molecular formula C23H22N2O3, MW 374.43 g/mol) for analytical method development and quality control.
Structurally, (R)-2-Amino-4-oxo-4-(tritylamino)butanoic acid (C23H22N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 374.43 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C23H22N2O3 |
| Molecular Weight | 374.43 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
Related R Standards
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Recommended Standards
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- (E)-3-(3,4-dimethoxyphenyl)-N-((2-fluoro-4-methylphenyl)carbamothioyl)acrylamide (CAS 338403-77-3)
- (S)-2,2-Bis(methoxymethoxy)-1,1-binaphthyl (CAS 74292-20-9)
- 4-(3-Bromophenyl)-4-methylpiperidine hydrochloride (CAS 1427380-24-2)
- 3-(2-Fluorophenyl)-4-(((5-methylthiophen-2-yl)methylene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 573694-24-3)
- 1-(2-Chlorobenzyl)-3-(3-(trifluoromethyl)phenyl)urea (CAS 897540-69-1)
- 2-Bromo-N-(4-phenylbutyl)benzamide (CAS 332408-69-2)
- 5-Oxo-2-(4-propoxyphenyl)tetrahydrofuran-3-carboxylic acid (CAS 1399662-98-6)
- 3-(Difluoromethyl)-2-fluoro-4-iodopyridine (CAS 1446786-38-4)
- 2,6-Diamino-3-methyl-5-nitropyrimidin-4(3H)-one (CAS 878-87-5)
- (S)-2-Amino-4-fluoro-5-(morpholin-3-yl)benzoic acid (CAS 1213878-66-0)
- 2-Bromo-N-(2,4-dimethylphenyl)propanamide (CAS 1081551-63-4)
- Semaglutide impurity 42 (CAS CATO-C4X-222642)
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