4,5-Dimethylpicolinic acid CAS 802256-42-4
| CAS No. | 802256-42-4 |
| Molecular Formula | C8H9NO2 |
| Molecular Weight | 151.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,5-Dimethylpicolinic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4,5-Dimethylpicolinic acid (CAS 802256-42-4), molecular formula C8H9NO2 and molecular weight 151.16 g/mol, is a CATO reference standard with documented purity and traceability.
4,5-Dimethylpicolinic acid (C8H9NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 4,5-Dimethylpicolinic acid 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.
Physical & Chemical Properties
| Molecular Formula | C8H9NO2 |
| Molecular Weight | 151.16 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
Related Dimethylpicolinic Standards
Recommended Standards
- 4-(Hydroxymethyl)benzamide (CAS 87128-27-6)
- 4,5-Dimethylpyridine-3-carboxylic acid (CAS 878794-22-0)
- 4-(Hydroxy(methyl)amino)benzaldehyde (CAS 375363-93-2)
- 4,6-Dimethyl-2-oxo-2,3-dihydropyridine-3-carbaldehyde (CAS 408526-57-8)
- 1-[1-(morpholin-4-yl)cyclopentyl]ethan-1-amine dihydrochloride (CAS 1354957-61-1)
- 2-((3-(2-Chlorophenyl)-1,2,4-thiadiazol-5-yl)thio)-N-(o-tolyl)acetamide (CAS 864919-05-1)
- 4-Chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[c][1,2,5]thiadiazole (CAS 2818960-21-1)
- 2,4-Dichloropyrimidine-5-sulfonyl Chloride (CAS 23920-08-3)
- (E)-2,6-Dimethyl-N-(1-(9-(2,4,6-triisopropylphenyl)-1,10-phenanthrolin-2-yl)ethylidene)aniline (CAS 2751681-01-1)
- 3,4-Dimethyl-1-(pyridin-2-yl)-1H-pyrazol-5(4H)-one (CAS 90840-09-8)
- 4-Methoxy-N-(3-(trifluoromethyl)phenyl)benzamide (CAS 200630-42-8)
- 4-Chloro-2-(piperidin-4-yl)phenol hydrochloride (CAS 1311254-53-1)
- (2S,4R)-2-(Trifluoromethyl)piperidin-4-ol hydrochloride (CAS 2387573-36-4)
- Tirzepatide Impurity 36 (CAS CATO-C4X-324036)
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