2-Hydroxypyrazolo[1,5-a]pyridine CAS 59942-87-9
| CAS No. | 59942-87-9 |
| Molecular Formula | C7H6N2O |
| Molecular Weight | 134.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Hydroxypyrazolo[1,5-a]pyridine (CAS 59942-87-9), molecular formula C7H6N2O and molecular weight 134.14 g/mol, is a CATO reference standard with documented purity and traceability.
2-Hydroxypyrazolo[1,5-a]pyridine (C7H6N2O) contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C7H6N2O |
| Molecular Weight | 134.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |
Related Hydroxypyrazolo Standards
- 5-Hydroxypyrazolo[3,4-c]pyridine (CAS 1049672-77-6)
- 5-Hydroxypyrazolo[4,3-b]pyridine (CAS 52090-73-0)
- 7-Hydroxypyrazolo[1,5-a]pyrimidine-6-carbonitrile (CAS 89642-01-3)
- 5-Hydroxypyrazolo[1,5-a]pyridine-3-carbaldehyde (CAS 1101120-29-9)
- 1-(6-Hydroxypyrazolo[1,5-b]pyridazin-3-yl)ethanone (CAS 551920-26-4)
- 5-Hydroxypyrazolo[1,5-a]pyridine-3-carboxylic acid (CAS 1491327-16-2)
- 7-Hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 63612-04-4)
- 3-Ethyl-7-hydroxypyrazolo[1,5-a]pyrimidin-5(4H)-one (CAS 1479504-65-8)
Recommended Standards
- 2-Hydroxy-5-methylpyridine-3-carbonitrile (CAS 38076-79-8)
- 2-methyl-[1,2,4]triazolo[1,5-c]pyrimidine (CAS 69141-78-2)
- 2-hydrazinylisonicotinonitrile (CAS 913839-68-6)
- 2-methyl-1H-imidazo[4,5-b]pyrazine (CAS 38956-46-6)
- 3,5-Diisobutylpyrrolidine-2,4-dione (CAS 219542-06-0)
- 7-benzyl-2-[4-(trifluoromethyl)phenyl]-3H,4H,5H,6H,7H,8H-pyrido[3,4-d]pyrimidin-4-one hydrochloride (CAS 1803603-84-0)
- 5-Vinylpyrimidin-2-amine (CAS 108444-56-0)
- Ethyl 1-Boc-4-amino-1,2,5,6-tetrahydropyridine-3-carboxylate (CAS 947403-75-0)
- Trimethyl(2-phenylallyl)silane (CAS 77130-15-5)
- 5-(Chloromethyl)-3-[(3-fluorophenyl)methyl]-1,2,4-oxadiazole (CAS 1247475-08-6)
- 3-(6-Methoxy-2-oxo-2H-chromen-3-yl)propanoic acid (CAS 1365941-12-3)
- 4′-[2,2′:6′,2′′-Terpyridin]-4′-yl[1,1′-biphenyl]-4-carboxylic acid (CAS 1005211-20-0)
- 2-Chloro-3-fluoro-5-iodopyridin-4-amine (CAS 1801841-62-2)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
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