5-Phenylpyrazolo[1,5-a]pyridine CAS 676239-66-0
| CAS No. | 676239-66-0 |
| Molecular Formula | C13H10N2 |
| Molecular Weight | 194.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Phenylpyrazolo[1,5-a]pyridine (CAS 676239-66-0) is a high-purity analytical reference standard with the molecular formula C13H10N2 and a molecular weight of 194.23 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 5-Phenylpyrazolo[1,5-a]pyridine is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 194.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C13H10N2 |
| Molecular Weight | 194.23 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Phenylpyrazolo Standards
- 2-Phenylpyrazolo[1,5-a]pyridine (CAS 56983-95-0)
- 3-Phenylpyrazolo[1,5-a]pyrimidine (CAS 394208-27-6)
- 7-Phenylpyrazolo[1,5-a]pyrimidine (CAS 72851-18-4)
- 5-Methyl-2-phenylpyrazolo[1,5-a]pyrimidine (CAS 144205-23-2)
- 2-Methyl-7-phenylpyrazolo[1,5-a]pyrimidine (CAS 186956-64-9)
- 2-Phenylpyrazolo[1,5-a]pyrimidin-6-amine (CAS 1269515-27-6)
- 2-Phenylpyrazolo[1,5-a]pyrimidin-7-amine (CAS 868529-29-7)
- 2-Phenylpyrazolo[1,5-a]pyrazin-4(5H)-one (CAS 1255784-04-3)
Recommended Standards
- 5-Phenyl-1H-benzo[d]imidazole (CAS 90445-37-7)
- 6-(4-Methylpiperazin-1-yl)pyridazin-3-ol (CAS 344287-23-6)
- 5-Phenoxy-n-valeric acid (CAS 7170-40-3)
- 6-(Diethylamino)picolinic acid (CAS 290819-99-7)
- 3-Chloro-5-cyclopropoxy-N,N-dimethylbenzamide (CAS 1243346-61-3)
- Methyl 3-hydroxy-1H-pyrrole-2-carboxylate (CAS 79068-31-8)
- (1-(2,5-Difluorophenyl)-1h-pyrazol-3-yl)methanamine (CAS 1511696-81-3)
- 4'-((4-Carboxyphenyl)ethynyl)-2',5'-dimethoxy-[1,1'-biphenyl]-4-carboxylicacid (CAS 2052361-57-4)
- Potassium Bitartrate (CAS 868-14-4)
- Z-DL-Orn(Boc)-OH (CAS 199924-46-4)
- (R)-1-(3,5-dichlorophenyl)butan-1-amine (CAS 1213457-45-4)
- 3-(5-Bromothiophen-2-yl)-2-oxopropanoic acid (CAS 1016725-49-7)
- 1-(4-(4-(2-Hydroxyethyl)piperazin-1-yl)phenyl)ethan-1-one (CAS 166438-77-3)
- (Leu31,Pro3?)-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 132699-73-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com