6-Chloro-[1,2,4]triazolo[4,3-a]pyrazine CAS 1314974-66-7
| CAS No. | 1314974-66-7 |
| Molecular Formula | C5H3ClN4 |
| Molecular Weight | 154.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Chloro-[1,2,4]triazolo[4,3-a]pyrazine (C5H3ClN4) contains a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
6-Chloro-[1,2,4]triazolo[4,3-a]pyrazine (CAS 1314974-66-7), molecular formula C5H3ClN4 and molecular weight 154.56 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C5H3ClN4 |
| Molecular Weight | 154.56 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 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 3-chloro-[1,2,4]triazolo[4,3-a]pyrimidine (CAS 1020036-31-0)
- 4-Chloro-1H-imidazo[4,5-d]pyridazine (CAS 1083181-53-6)
- 6-Chloro-7H-purine (CAS 111055-92-6)
- 7-Chloro-[1,2,4]triazolo[1,5-c]pyrimidine (CAS 1159811-23-0)
- 5-Chloro-1H-pyrazolo[3,4-b]pyrazine (CAS 116527-52-7)
- 5-Chloro-1H-imidazo[4,5-b]pyrazine (CAS 1196151-76-4)
- 6-Chloro-3H-[1,2,3]triazolo[4,5-c]pyridine (CAS 120641-09-0)
- 8-Chloro-[1,2,4]triazolo[4,3-c]pyrimidine (CAS 1208083-81-1)
Recommended Standards
- 4-Amino-5-chloropyrimidine-2-carbonitrile (CAS 1260863-79-3)
- 2-chloro-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 1330763-38-6)
- 3-Chloro-1h-pyrazolo[3,4-b]pyrazine (CAS 1260773-79-2)
- 5-Chloro-1H-pyrazolo[3,4-c]pyridazine (CAS 1352546-77-0)
- 1-(4-fluorobenzenesulfonyl)pyrrolidine (CAS 157187-14-9)
- 5-Cyclopropoxy-N-methylisophthalamide (CAS 1243347-88-7)
- 2-Amino-4-(2-hydroxyethoxy)-6-oxo-1,6-dihydropyrimidine-5-carbonitrile (CAS 126865-37-0)
- Ethyl 5-bromo-4-ethoxy-2,3-difluorobenzoate (CAS 2484888-89-1)
- 5-(6-Chloropyridin-3-yl)-3-(4-fluorophenyl)-1,2,4-oxadiazole (CAS 1120245-40-0)
- (6-(Methoxycarbonyl)-2-methylpyridin-3-yl)boronic acid (CAS 1621256-21-0)
- Ethyl 2-amino-2-(6-((tert-butoxycarbonyl)amino)pyridin-2-yl)acetate (CAS 1246550-38-8)
- Z-8-dodecen-1-ol (CAS 40642-40-8)
- Tert-butyl 4-(benzylamino)azepane-1-carboxylate (CAS 878630-66-1)
- Semaglutide impurity 46 (CAS CATO-C4X-222646)
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