Fmoc-(S)-3-Amino-3-(2-pyridyl)-propionic acid CAS 501015-39-0
| CAS No. | 501015-39-0 |
| Molecular Formula | C23H20N2O4 |
| Molecular Weight | 388.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Fmoc-(S)-3-Amino-3-(2-pyridyl)-propionic acid (CAS 501015-39-0), molecular formula C23H20N2O4 and molecular weight 388.42 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H20N2O4, Fmoc-(S)-3-Amino-3-(2-pyridyl)-propionic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 388.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C23H20N2O4 |
| Molecular Weight | 388.42 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 2 |
Related Fmoc Standards
- Fmoc-DL-2-pyridylalanine (CAS 1236267-09-6)
- N-Fmoc-3-(4-pyridyl)-L-alanine (CAS 169555-95-7)
- Fmoc-2-D-Pal-OH (CAS 185379-39-9)
- Fmoc-3-(2-pyridyl)-L-alanine (CAS 185379-40-2)
- Fmoc-(R)-3-Amino-3-(3-pyridyl)-propionic acid (CAS 511272-43-8)
- Fmoc-(RS)-3-amino-3-(3-pyridyl)-propionic acid (CAS 284491-95-8)
- Fmoc-(S)-3-Amino-3-(3-pyridyl)-propionic acid (CAS 507472-06-2)
- Fmoc-D-3-Pal-OH (CAS 142994-45-4)
Recommended Standards
- Methyl (2E)-3-[(4-phenoxyphenyl)amino]-2-(phenylformamido)prop-2-enoate (CAS 338785-27-6)
- Ethyl 2-((4-(3-fluoro-4-methoxyphenyl)-5-methylpyrimidin-2-yl)amino)thiazole-4-carboxylate (CAS 861211-24-7)
- N-(((9H-fluoren-9-yl)methoxy)carbonyl)-N-(pyridin-2-ylmethyl)glycine (CAS 258332-50-2)
- 6-Amino-4-(3-ethoxy-4-hydroxyphenyl)-3-methyl-1-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 333341-50-7)
- (E)-Methyl 4-(4-methyl-2-(2,2,2-trifluoro-1-(2-((2-(trifluoromethyl)phenyl)sulfonyl)hydrazono)ethyl)phenoxy)butanoate (CAS 2738683-53-7)
- Methyl 1-Boc-4-Aminopiperidine-4-carboxylate (CAS 321997-89-1)
- 7554-67-8 4-Ethyl-3,5-dimethyl-1H-pyrazole DTXSID50341410 (CAS 7554-67-8)
- 4-Isopropyl-4-methylpyrrolidin-2-one (CAS 1217862-71-9)
- 2-((3-Hydroxynaphthalen-2-yl)oxy)acetic acid (CAS 72836-74-9)
- Cinacalcet Impurity 10 (CAS 952-97-6)
- tert-Butyl 3,6,9,12,15,18,21-heptaoxadotriacont-31-enoate (CAS 887353-83-5)
- N-Desmethyl Venlafaxine-D3 N-nitroso (CAS 2680662-11-5 (unlabelled))
- 3-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)-2-fluoro-2-methylpropane-1-sulfonyl chloride (CAS 1909314-21-1)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
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