3,5-dimethylpyridine-2,6-dicarboxylic acid CAS CATO-C3D-262241
| CAS No. | CATO-C3D-262241 |
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-dimethylpyridine-2,6-dicarboxylic acid (C9H9NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies 3,5-dimethylpyridine-2,6-dicarboxylic acid (CAS CATO-C3D-262241), a certified reference material (molecular formula C9H9NO4, MW 195.17 g/mol) for analytical method development and quality control.
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 | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related dimethylpyridine Standards
- 2,6-Dimethylpyridine-3,4-dicarboxylic acid (CAS 13602-84-1)
- 2,6-Dimethylpyridine-3,5-dicarboxylic acid (CAS 2602-36-0)
- 5,6-Dimethylpyridine-2,4-dicarboxylic acid (CAS 2720619-95-2)
- 1,1'-(2,6-Dimethylpyridine-3,5-diyl)diethanone (CAS 24234-61-5)
- 4,5-Dimethylpyridine-3-sulfonic acid (CAS 1160993-91-8)
- 5,6-Dimethylpyridine-3-sulfonic acid (CAS 1160993-93-0)
- 2,6-Dimethylpyridine-3-sulfonic acid (CAS 87655-41-2)
- 2,6-Dimethylpyridine-4-sulfonic acid (CAS 89776-80-7)
Recommended Standards
- 2-Acetamido-6-hydroxybenzoic acid (CAS 409326-60-9)
- Methyl 2-(4-nitrophenyl)acetate (CAS 2945-08-6)
- 2-Acetamido-4-hydroxybenzoic acid (CAS 99358-07-3)
- Methyl 3-Nitrophenylacetate (CAS 10268-12-9)
- 4-Amino-N-(4-(2-(pyridin-3-yl)thiazol-5-yl)pyrimidin-2-yl)benzenesulfonamide (CAS 1210769-98-4)
- 2-(tert-Butoxy)-4-cyclopropoxy-5-ethylpyridine (CAS 1243400-78-3)
- 4-Cyano-5-methoxy-1H-indazole (CAS 1352395-32-4)
- 4-(Difluoromethyl)-1-isopropyl-1H-imidazole-5-carboxylic acid (CAS 2416993-34-3)
- (5-Chloro-2-methylphenyl)(methyl)sulfane (CAS 82961-51-1)
- (R)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]thiazepin-3-yl)carbamate (CAS 440634-12-8)
- Policresulen Impurity 14 (CAS 41481-17-8)
- 5-Hydroxy-2-nitrobenzoyl chloride (CAS 1261617-16-6)
- 1,3-Bis(2,4,6-trimethylphenyl)-1,3-dihydro-2<I>H</I>-imidazole-2-ylidene (CAS 141556-42-5)
- Semaglutide Impurity 191 (CAS CATO-C4X-2226191)
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