6-Amino-5-(4-chloro-3-methylphenyl)pyridine-3-carboxylic acid CAS 1426958-48-6
| CAS No. | 1426958-48-6 |
| Molecular Formula | C13H11ClN2O2 |
| Molecular Weight | 262.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 6-Amino-5-(4-chloro-3-methylphenyl)pyridine-3-carboxylic acid (CAS 1426958-48-6), a certified reference material (molecular formula C13H11ClN2O2, MW 262.69 g/mol) for analytical method development and quality control.
Structurally, 6-Amino-5-(4-chloro-3-methylphenyl)pyridine-3-carboxylic acid (C13H11ClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 262.69 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C13H11ClN2O2 |
| Molecular Weight | 262.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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 DMSO, DMF, methanol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Amino Standards
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Recommended Standards
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- Methyl 1-acetyl-4-(2-chloroacetyl)piperazine-2-carboxylate (CAS 1353943-47-1)
- Dimethyl Pyrazolo[1,5-a]pyridine-2,3-dicarboxylate (CAS 5825-71-8)
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- Ethyl 1-Benzylpiperidine-3-carboxylate (CAS 72551-53-2)
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