| CAS No. | 140187-23-1 |
| Molecular Formula | C7H8FN3O4 |
| Molecular Weight | 217.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of (2S)-2-amino-3-(5-fluoro-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)propanoic acid (S)-(-)-5-fluorowillardiine (S)-F-Willardiine (S)-alpha-Amino-5-fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimmidinepropanoic acid 140187-23-1 2-AMINO-3-(5-FLUORO-2,4-DIOXO-3,4-DIHYDRO-2H-PYRIMIDIN-1-YL)-PROPIONIC ACID 3-(5-fluoro-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-L-alanine 3-(5-fluorouracil-1-yl)-L-alanine 5-Fluorowillardiine CHEBI:42549 is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(2S)-2-amino-3-(5-fluoro-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)propanoic acid (S)-(-)-5-fluorowillardiine (S)-F-Willardiine (S)-alpha-Amino-5-fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimmidinepropanoic acid 140187-23-1 2-AMINO-3-(5-FLUORO-2,4-DIOXO-3,4-DIHYDRO-2H-PYRIMIDIN-1-YL)-PROPIONIC ACID 3-(5-fluoro-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-L-alanine 3-(5-fluorouracil-1-yl)-L-alanine 5-Fluorowillardiine CHEBI:42549 (CAS 140187-23-1), molecular formula C7H8FN3O4 and molecular weight 217.15 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (2S)-2-amino-3-(5-fluoro-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)propanoic acid (S)-(-)-5-fluorowillardiine (S)-F-Willardiine (S)-alpha-Amino-5-fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimmidinepropanoic acid 140187-23-1 2-AMINO-3-(5-FLUORO-2,4-DIOXO-3,4-DIHYDRO-2H-PYRIMIDIN-1-YL)-PROPIONIC ACID 3-(5-fluoro-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-L-alanine 3-(5-fluorouracil-1-yl)-L-alanine 5-Fluorowillardiine CHEBI:42549 (C7H8FN3O4) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (2S)-2-amino-3-(5-fluoro-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)propanoic acid (S)-(-)-5-fluorowillardiine (S)-F-Willardiine (S)-alpha-Amino-5-fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimmidinepropanoic acid 140187-23-1 2-AMINO-3-(5-FLUORO-2,4-DIOXO-3,4-DIHYDRO-2H-PYRIMIDIN-1-YL)-PROPIONIC ACID 3-(5-fluoro-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-L-alanine 3-(5-fluorouracil-1-yl)-L-alanine 5-Fluorowillardiine CHEBI:42549 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.
| Molecular Formula | C7H8FN3O4 |
| Molecular Weight | 217.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |