3-Bromo-1-ethyl-5-methyl-1H-1,2,4-triazole CAS 1823357-20-5
| CAS No. | 1823357-20-5 |
| Molecular Formula | C5H8BrN3 |
| Molecular Weight | 190.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 190.04 g/mol gives 3-Bromo-1-ethyl-5-methyl-1H-1,2,4-triazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Bromo-1-ethyl-5-methyl-1H-1,2,4-triazole (CAS 1823357-20-5) is a high-purity analytical reference standard with the molecular formula C5H8BrN3 and a molecular weight of 190.04 g/mol.
The molecular framework of 3-Bromo-1-ethyl-5-methyl-1H-1,2,4-triazole (C5H8BrN3) is characterized by a nitrile group, bromine 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Bromo-1-ethyl-5-methyl-1H-1,2,4-triazole 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.
Physical & Chemical Properties
| Molecular Formula | C5H8BrN3 |
| Molecular Weight | 190.04 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 5-Bromo-3-isopropylisoxazole (CAS 1780188-72-8)
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- 3-Phenyl-4,5-dihydro-1h-1,2,4-triazol-5-one (CAS 939-07-1)
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- 1-(Phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde (CAS 1227269-32-0)
- Ethyl 2,5-Difluorobenzoate (CAS 708-25-8)
- Insulin Lispro (CAS 133107-64-9)
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