8-Chloro-3-phenyl-[1,2,4]triazolo[4,3-a]pyridine CAS 135782-64-8
| CAS No. | 135782-64-8 |
| Molecular Formula | C12H8ClN3 |
| Molecular Weight | 229.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 8-Chloro-3-phenyl-[1,2,4]triazolo[4,3-a]pyridine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
8-Chloro-3-phenyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 135782-64-8) is a high-purity analytical reference standard with the molecular formula C12H8ClN3 and a molecular weight of 229.67 g/mol.
Structurally, 8-Chloro-3-phenyl-[1,2,4]triazolo[4,3-a]pyridine (C12H8ClN3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 229.67 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).
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 | C12H8ClN3 |
| Molecular Weight | 229.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
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- 3-(4-Chloro-2-pyrimidinyl)-1H-Indole (CAS 1146080-35-4)
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Recommended Standards
- 8-Chloro-1-phenylimidazo[1,5-a]pyrazine (CAS 1340769-63-2)
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- 3-(4-Chlorophenyl)-3H-imidazo[4,5-b]pyridine (CAS 132458-91-4)
- 2-(2-Chloropyridin-3-yl)-1H-benzo[d]imidazole (CAS 143426-40-8)
- N-(Furan-3-ylmethyl)-N-(2-(thiophen-2-yl)ethyl)cyclopropanecarboxamide (CAS 1428350-72-4)
- 3-Ethyl-4-fluoroaniline (CAS 870606-36-3)
- Methyl (2S,4S)-4-[2-chloro-4-(tert-pentyl)phenoxy]-2-pyrrolidinecarboxylate hydrochloride (CAS 1354485-03-2)
- Bis(2-(2-hydroxyethoxy)ethyl) malonate (CAS 120675-12-9)
- Oxazol-2-ylboronic acid (CAS 891660-66-5)
- 2-Amino-3-bromo-4,5-difluorobenzoic acid (CAS 874831-41-1)
- Cefminox impurity 53 (CAS CATO-C4X-192653)
- (S)-2-((R)-2-Amino-4-methylpentanamido)-3-(4-hydroxyphenyl)propanoic acid hydrate (CAS 3303-29-5)
- Sodium 4-(benzylamino)benzenesulfonate (CAS 32339-03-0)
- Acetyl Tetrapeptide-11 (CAS 928006-88-6)
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