5-Phenoxypicolinic acid CAS 444919-20-4
| CAS No. | 444919-20-4 |
| Molecular Formula | C12H9NO3 |
| Molecular Weight | 215.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Phenoxypicolinic acid.
5-Phenoxypicolinic acid (CAS 444919-20-4), molecular formula C12H9NO3 and molecular weight 215.20 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Phenoxypicolinic acid (C12H9NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
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 | C12H9NO3 |
| Molecular Weight | 215.20 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Phenoxypicolinic Standards
Recommended Standards
- 4-Phenoxypyridine-3-carboxylic acid (CAS 54629-95-7)
- 5-Phenoxypyridine-3-carboxylic acid (CAS 668969-15-1)
- 4-Oxo-1,2-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-5-carboxylic acid (CAS 386715-43-1)
- 6-Hydroxy-9-methylfuro[2,3-b]quinolin-4(9H)-one (CAS 221457-19-8)
- Methyl 4-hydroxy-7-(trifluoromethyl)quinoline-3-carboxylate (CAS 1448259-54-8)
- Rel-ethyl (1S,2R,4R)-bicyclo[2.2.1]heptane-2-carboxylate (CAS 61242-71-5)
- 2,4-dichloro-5,6-dimethylpyrrolo[2,1-f][1,2,4]triazine (CAS 2306273-15-2)
- 3-amino-3-(3-fluorofuran-2-yl)propanoic acid (CAS 1823646-24-7)
- N-Acetyl-L-glucosamine (CAS 134451-94-8)
- N-(4-Fluorophenyl)pyridin-2(1H)-one (CAS 60532-42-5)
- N-methylspiro[2.3]Hexane-1-carboxamide (CAS 1385031-06-0)
- 951887-82-4 Ethyl 3-acetoxybenzoylformate MFCD09801384 (CAS 951887-82-4)
- 1-Benzyl-1-methyl-3-phenylurea (CAS 53693-55-3)
- Proinsulin C-Peptide (55-89) (human) (CAS 11097-48-6)
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