2-methyl-2H-pyrazolo[4,3-b]pyridine-6-carboxylic acid CAS 2231673-41-7
| CAS No. | 2231673-41-7 |
| Molecular Formula | C8H15N3O2 |
| Molecular Weight | 185.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-methyl-2H-pyrazolo[4,3-b]pyridine-6-carboxylic acid (CAS 2231673-41-7) is a high-purity analytical reference standard with the molecular formula C8H15N3O2 and a molecular weight of 185.22 g/mol.
Structurally, 2-methyl-2H-pyrazolo[4,3-b]pyridine-6-carboxylic acid (C8H15N3O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 185.22 g/mol, it falls into the medium-molecular-weight range. 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).
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.
As a certified reference material (CRM), 2-methyl-2H-pyrazolo[4,3-b]pyridine-6-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 | C8H15N3O2 |
| Molecular Weight | 185.22 g/mol |
| Appearance | 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 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 3 |
Recommended Standards
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- 2-methyl-6-nitro-2H-indazole (CAS 6850-22-2)
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- 4-(2-Cyano-acetyl)-2,5-dimethyl-1H-pyrrole-3-carboxylic acid ethyl ester (CAS 721417-11-4)
- RVX 208 (CAS 1044870-39-4)
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