| CAS No. | 1359655-72-3 |
| Molecular Formula | C4H2ClN5 |
| Molecular Weight | 155.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
8-Chloro-[1,2,4]triazolo[3,4-f][1,2,4]triazine (CAS 1359655-72-3), molecular formula C4H2ClN5 and molecular weight 155.55 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 8-Chloro-[1,2,4]triazolo[3,4-f][1,2,4]triazine (C4H2ClN5) is characterized by a nitrile group, chlorine substitution. 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).
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.
CATO manufactures 8-Chloro-[1,2,4]triazolo[3,4-f][1,2,4]triazine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C4H2ClN5 |
| Molecular Weight | 155.55 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.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |