6-chloro-[1,2,3]triazolo[1,5-a]pyridine CAS 1513490-87-3
| CAS No. | 1513490-87-3 |
| Molecular Formula | C6H4ClN3 |
| Molecular Weight | 153.57 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.
6-chloro-[1,2,3]triazolo[1,5-a]pyridine (CAS 1513490-87-3), molecular formula C6H4ClN3 and molecular weight 153.57 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6-chloro-[1,2,3]triazolo[1,5-a]pyridine (C6H4ClN3) is characterized by a nitrile group, chlorine substitution, an aromatic ring system. 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. 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 | C6H4ClN3 |
| Molecular Weight | 153.57 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
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- 2-Chloro-1H-imidazo[4,5-b]pyridine (CAS 104685-82-7)
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Recommended Standards
- 7-Chloro-[1,2,4]triazolo[4,3-a]pyridine (CAS 1505568-26-2)
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- 4-Chlorobenzo[c]isoxazole (CAS 150079-72-4)
- 6-Amino-5-chloronicotinonitrile (CAS 156361-02-3)
- 46055-62-3 2-Ethyl-3H-benzoimidazol-5-ylamine DTXSID10389136 (CAS 46055-62-3)
- 3-Methyl-1-oxo-N-(quinoxalin-6-yl)isochromane-3-carboxamide (CAS 921118-69-6)
- 1365964-29-9 3-Chloro-N-(4-{[(5-methyl-1,3,4-thiadiazol-2-yl)amino]sulfonyl}phenyl)propanamide MFCD22056634 (CAS 1365964-29-9)
- tert-Butyl (2-(4-formyl-6-(trifluoromethyl)pyridin-2-yl)ethyl)carbamate (CAS 1393534-66-1)
- (6-Hydroxy-5-methylpyridin-3-yl)boronic acid (CAS 1356087-46-1)
- N,N-diethyl-5-fluoro-2,4-dinitroaniline (CAS 6917-48-2)
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- Methyl 1-methyl-1,2,3,4-tetrahydronaphthalene-1-carboxylate, 97% (CAS 113967-23-0)
- 3-ethyl-2-methylquinolin-4-ol (CAS 1888-01-3)
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