Pyrazolo[1,5-a]pyridine CAS 274-56-6
| CAS No. | 274-56-6 |
| Molecular Formula | C7H6N2 |
| Molecular Weight | 118.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pyrazolo[1,5-a]pyridine (CAS 274-56-6), molecular formula C7H6N2 and molecular weight 118.14 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, an aromatic ring system, Pyrazolo[1,5-a]pyridine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 118.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Pyrazolo[1,5-a]pyridine 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 | C7H6N2 |
| Molecular Weight | 118.14 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.) | 1957 |
| Nitrogen Atoms | 2 |
Related Pyrazolo Standards
- 2H-Pyrazolo[3,4-b]pyridine (CAS 271-71-6)
- 2H-Pyrazolo[4,3-b]pyridine (CAS 272-51-5)
- 3h-Pyrazolo[3,4-c]pyridine (CAS 271-46-5)
- 3H-Pyrazolo[4,3-b]pyridine (CAS 40865-12-1)
- 3H-Pyrazolo[4,3-c]pyridine (CAS 271-51-2)
- 5H-Pyrazolo[4,3-c]pyridine (CAS 271-49-8)
- pyrazolo[1,5-a]pyrazine (CAS 24973-85-1)
- Pyrazolo[1,5-b]pyridazine (CAS 35731-27-2)
Recommended Standards
- Phenylcyanamide (CAS 622-34-4)
- Pyrrolo[1,2-a]pyrimidine (CAS 274-66-8)
- Bicyclo[1.1.1]Pentane-1,3-dicarbonitrile (CAS 97460-11-2)
- 7-Azaindole (CAS 271-63-6)
- 4,9-Dibromo-6,7-diphenyl-[1,2,5]thiadiazolo[3,4-g]quinoxaline (CAS 1262727-09-2)
- 2-(sec-Butyl)-5-methoxypyridazin-3(2H)-one (CAS 2060009-01-8)
- N-(2-Cyanophenyl)-3,4-dimethoxybenzamide (CAS 333442-29-8)
- 1-(1-Ethyl-2,5-dimethyl-1H-pyrrol-3-yl)ethanone (CAS 943120-21-6)
- 4-Methyl-3-(methylthio)-5-(5-nitrofuran-2-yl)-4H-1,2,4-triazole (CAS 41735-55-1)
- 2-(4-Bromo-2-chlorophenyl)-1,3-dioxolane (CAS 2221812-22-0)
- (Des-Gly10,D-Leu6,Orn8,Pro-NHEt9)-LHRH trifluoroacetate salt (CAS 1051970-61-6)
- 5-Azaspiro[2.4]heptane-7-carboxylic acid (CAS 1427195-37-6)
- 2-(tert-Butyl)-5-chloronicotinaldehyde (CAS 1211534-07-4)
- Tirzepatide-d7 Ditrifluoroacetate (CAS CATO-CPTD788698)
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