2-Oxo-1,2-dihydropyrazolo[1,5-a]pyridine-6-carbonitrile CAS 2734860-78-5
| CAS No. | 2734860-78-5 |
| Molecular Formula | C8H5N3O |
| Molecular Weight | 159.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Oxo-1,2-dihydropyrazolo[1,5-a]pyridine-6-carbonitrile (CAS 2734860-78-5), a certified reference material (molecular formula C8H5N3O, MW 159.14 g/mol) for analytical method development and quality control.
The molecular framework of 2-Oxo-1,2-dihydropyrazolo[1,5-a]pyridine-6-carbonitrile (C8H5N3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H5N3O |
| Molecular Weight | 159.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 3 |
Related Oxo Standards
- 5-Oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 1224288-95-2)
- 7-Oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 138904-48-0)
- (2,3-Dihydropyrazolo[5,1-b]thiazol-6-yl)methanol (CAS 623565-45-7)
- (4,6-Dihydropyrazolo[1,5-c]thiazol-2-yl)methanol (CAS 623564-67-0)
- 4-Oxo-4,5-dihydropyrazolo[1,5-a]pyrazine-6-carbaldehyde (CAS 2844455-35-0)
- 2,3-Dihydropyrazolo[5,1-b]thiazole-6-carbaldehyde (CAS 623565-43-5)
- 2,3-Dihydropyrazolo[5,1-b]thiazole-7-carbaldehyde (CAS 623565-44-6)
- 4,6-Dihydropyrazolo[1,5-c]thiazole-2-carbaldehyde (CAS 623564-68-1)
Recommended Standards
- 2-Morpholino-2-oxoacetic acid (CAS 28911-34-4)
- 2-Oxo-2,3-dihydrobenzimidazole-5-carbonitrile (CAS 221289-88-9)
- 2-Methyl-6-oxo-1,6-dihydropyridine-3,4-dicarbonitrile (CAS 400081-34-7)
- 3-(2-oxo-1,3-oxazolidin-3-yl)propanoic acid (CAS 876506-51-3)
- 2-Phenyl-5,7-bis(trifluoromethyl)pyrazolo[1,5-a]pyrimidine (CAS 361368-93-6)
- 4-Bromo-2-fluoro-6-methylaniline (CAS 429683-46-5)
- 5-Ethoxy-2-(4-nitrophenyl)oxazole (CAS 477867-60-0)
- N5-(1-Methylpiperidin-4-yl)pyridine-2,5-diamine (CAS 1096891-91-6)
- 3-(4-Bromophenyl)-1-(4-chlorophenyl)-1H-pyrazol-4-ol (CAS 1202029-94-4)
- 5-(4-Chlorophenyl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 187999-16-2)
- Thulium(III) chloride hexahydrate (CAS 1331-74-4)
- Meropenem Impurity 47 (CAS CATO-C4X-130947)
- Ornidazole impurity 50 (CAS CATO-C4X-133150)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com