5-Oxo-1-(4-pyridinylmethyl)-3-pyrrolidinecarboxylic acid CAS 304859-15-2
| CAS No. | 304859-15-2 |
| Molecular Formula | C11H12N2O3 |
| Molecular Weight | 220.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Oxo-1-(4-pyridinylmethyl)-3-pyrrolidinecarboxylic acid (CAS 304859-15-2), molecular formula C11H12N2O3 and molecular weight 220.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H12N2O3, 5-Oxo-1-(4-pyridinylmethyl)-3-pyrrolidinecarboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 220.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H12N2O3 |
| Molecular Weight | 220.22 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 methanol, ethanol, DMSO |
| 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.) | 2025 |
| Nitrogen Atoms | 2 |
Related Oxo Standards
- 5-Oxo-1-(2-pyridinylmethyl)-3-pyrrolidinecarboxylic acid (CAS 845546-25-0)
- 5-Oxo-1-(3-pyridinylmethyl)-3-pyrrolidinecarboxylic acid (CAS 842958-29-6)
- 2-[1-(4-Pyridinylmethyl)-3-pyrrolidinyl]-acetic acid (CAS 1220027-66-6)
- 2-[1-(2-Pyridinylmethyl)-3-pyrrolidinyl]-acetic acid (CAS 1220027-75-7)
- 1-(3-Pyridinylmethyl)-4-piperidinecarboxylic acid 2057AF 887442-22-0 C12H16N2O2 (CAS 887442-22-0)
- 1-(2-Pyridinylmethyl)-1H-indazol-3-amine (CAS 927802-32-2)
- 3-(3-Pyridinylmethyl)-2-thioxo-1,3-thiazolidin-4-one (CAS 51216-58-1)
- 2-[(2-Pyridinylmethyl)amino]nicotinic acid (CAS 1019358-70-3)
Recommended Standards
- 5-Oxo-1-(phenylamino)pyrrolidine-3-carboxylic acid (CAS 39629-94-2)
- 6,7-difluoroquinazoline-2-carboxylic acid (CAS 2306264-50-4)
- 5-Nitro-2-(pyrrolidin-1-yl)benzaldehyde (CAS 30742-59-7)
- 6,7-difluoroquinoxaline-2-carboxylic acid (CAS 845782-63-0)
- PEG3-C4-OBn (CAS 2381196-79-6)
- 4,7-Dichloro-1H-indole-2-carboxylic acid (CAS 96129-74-7)
- n-(2-Bromobenzoyl)-n-cyclopropylglycine (CAS 1184289-31-3)
- 6-(Propylthio)-9H-purine (CAS 6288-93-3)
- 1-Chloro-3-ethoxy-5-(trifluoromethyl)benzene (CAS 1881332-01-9)
- [(2-Bromo-4-chlorophenyl)methyl](methyl)amine (CAS 900571-24-6)
- (E)-3-(4-Chlorophenyl)prop-2-en-1-ol (CAS 24583-70-8)
- methyl 3-[(oxan-4-yl)amino]propanoate (CAS 1137213-00-3)
- 2-(2-Fluorophenyl)-2-methoxypropanoic acid (CAS 1247392-62-6)
- Tirzepatide Impurity 10 (CAS CATO-C4X-324010)
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