7-chloro-[1,2,4]triazolo[4,3-c]pyrimidin-3-amine CAS 1306605-83-3
| CAS No. | 1306605-83-3 |
| Molecular Formula | C5H12ClN5 |
| Molecular Weight | 177.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 177.64 g/mol gives 7-chloro-[1,2,4]triazolo[4,3-c]pyrimidin-3-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-chloro-[1,2,4]triazolo[4,3-c]pyrimidin-3-amine (CAS 1306605-83-3), molecular formula C5H12ClN5 and molecular weight 177.64 g/mol, is a CATO reference standard with documented purity and traceability.
7-chloro-[1,2,4]triazolo[4,3-c]pyrimidin-3-amine (C5H12ClN5) 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.
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.
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 | C5H12ClN5 |
| Molecular Weight | 177.64 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related chloro Standards
- 5-chloro-1H-pyrazolo[4,3-d]pyrimidin-3-amine (CAS 1550762-43-0)
- 6-chloro-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 5417-78-7)
- 7-chloro-[1,2,4]triazolo[4,3-c]pyrimidin-8-amine (CAS 7498-26-2)
- 3-Chloro-2-methylquinoline (CAS 10222-49-8)
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- 6-chloro-4-methoxy-pyridine-2-carbaldehyde (CAS 1060805-05-1)
Recommended Standards
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- {1H-pyrazolo[3,4-b]pyridin-5-yl}methanol (CAS 1824400-75-0)
- 3,3,4,4,5,5,6,6,7,8,8,8-Dodecafluoro-7-(trifluoromethyl)octyl acrylate (CAS 50836-65-2)
- 4-Cyclopropyl-1,3-thiazole-5-carboxylic acid (CAS 1266822-87-0)
- 4-(4-Chloro-phenyl)-1-(2,5-dimethyl-phenyl)-1H-imidazole-2-thiol (CAS 302938-49-4)
- 6-Bromo-1-(pentan-3-yl)-1H-imidazo[4,5-b]pyrazin-2-ol (CAS 1005490-98-1)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
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