2,5-Dimethyl-1-(pyrazin-2-yl)-1h-pyrrole-3-carboxylic acid CAS 1156404-65-7
| CAS No. | 1156404-65-7 |
| Molecular Formula | C11H11N3O2 |
| Molecular Weight | 217.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,5-Dimethyl-1-(pyrazin-2-yl)-1h-pyrrole-3-carboxylic acid (C11H11N3O2) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2,5-Dimethyl-1-(pyrazin-2-yl)-1h-pyrrole-3-carboxylic acid (CAS 1156404-65-7), molecular formula C11H11N3O2 and molecular weight 217.22 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2,5-Dimethyl-1-(pyrazin-2-yl)-1h-pyrrole-3-carboxylic 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 | C11H11N3O2 |
| Molecular Weight | 217.22 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
Related Dimethyl Standards
- 2,5-dimethyl-1-(pyrimidin-2-yl)-1H-pyrrole-3-carboxylic acid (CAS 1016505-56-8)
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- 6-(3,5-Dimethyl-1h-pyrazol-1-yl)pyridine-3-carboxylic acid (CAS 1052558-30-1)
- 1,3-Dimethyl-2-oxo-1,2-dihydroquinoline-4-carboxylic acid (CAS 1073071-78-9)
- 7,8-Dimethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 111185-91-2)
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Recommended Standards
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