(2R)-3-Cyano-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]propanoic acid CAS 1820575-73-2
| CAS No. | 1820575-73-2 |
| Molecular Formula | C19H16N2O4 |
| Molecular Weight | 336.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(2R)-3-Cyano-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]propanoic acid (CAS 1820575-73-2), molecular formula C19H16N2O4 and molecular weight 336.34 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (2R)-3-Cyano-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]propanoic acid (C19H16N2O4) is characterized by a flavonoid 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).
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 | C19H16N2O4 |
| Molecular Weight | 336.34 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- Cyclobutyl(pyridin-3-yl)methanamine (CAS 1337455-60-3)
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- 2-(Ethylthio)-7-oxaspiro[3.5]nonane-2-carboxylic acid (CAS 1496672-97-9)
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