| CAS No. | 27643-43-2 |
| Molecular Formula | C4H5N7 |
| Molecular Weight | 151.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 151.13 g/mol gives 2H-[3,4'-bi(1,2,4-triazol)]-5-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2H-[3,4'-bi(1,2,4-triazol)]-5-amine (CAS 27643-43-2), molecular formula C4H5N7 and molecular weight 151.13 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2H-[3,4'-bi(1,2,4-triazol)]-5-amine (C4H5N7) is characterized by a nitrile group. 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 2H-[3,4'-bi(1,2,4-triazol)]-5-amine 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 | C4H5N7 |
| Molecular Weight | 151.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 7 |