4,5-dibromo-1-ethyl-1H-1,2,3-triazole CAS 1248676-59-6
| CAS No. | 1248676-59-6 |
| Molecular Formula | C4H5Br2N3 |
| Molecular Weight | 254.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,5-dibromo-1-ethyl-1H-1,2,3-triazole (C4H5Br2N3) contains a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
4,5-dibromo-1-ethyl-1H-1,2,3-triazole (CAS 1248676-59-6), molecular formula C4H5Br2N3 and molecular weight 254.91 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.
As a certified reference material (CRM), 4,5-dibromo-1-ethyl-1H-1,2,3-triazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C4H5Br2N3 |
| Molecular Weight | 254.91 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related dibromo Standards
- 3,5-Dibromo-1-ethyl-1H-1,2,4-triazole (CAS 1206092-46-7)
- 4,5-Dibromo-2-ethyl-2H-1,2,3-triazole (CAS 1248676-21-2)
- 3,4-Dibromo-1-methyl-1H-pyrazol-5-amine (CAS 1426958-35-1)
- 2,5-Dibromo-4-fluoropyridine (CAS 1033203-46-1)
- 2,6-Dibromo-4-fluoropyridine (CAS 1214344-15-6)
- 4,5-Dibromo-2-fluoropyridine (CAS 1214359-71-3)
- 3,5-dibromo-4-fluoropyridine (CAS 1214384-54-9)
- 3,6-Dibromo-2-fluoropyridine (CAS 1256820-70-8)
Recommended Standards
- 1-(4,5-Dibromofuran-2-yl)methanamine (CAS 1247764-71-1)
- 4-Bromo-5-(bromomethyl)-2-methyl-2H-1,2,3-triazole (CAS 942060-56-2)
- 4-Bromo-5-(bromomethyl)-3-methylisoxazole (CAS 53257-36-6)
- 5-Bromo-6-chloronicotinoyl chloride (CAS 78686-84-7)
- (4-(Methoxymethyl)tetrahydro-2H-pyran-4-yl)methanamine hydrochloride (CAS 1385696-74-1)
- 5-(3-Ethoxyphenyl)pyrimidin-2-amine (CAS 1111102-55-6)
- (cyclohexylmethyl)(propyl)amine hydrochloride (CAS 1158294-83-7)
- 3-Nitro-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile (CAS 1190322-60-1)
- 3-(4-methylphenyl)benzaldehyde (CAS 116470-54-3)
- 4-Chloro-5H-pyrido[4',3':4,5]pyrrolo[3,2-d]pyrimidine (CAS 1263285-23-9)
- 4-Chloro-6-methyl-1h,2h,3h-pyrrolo[3,4-c]pyridine-1,3-dione (CAS 40107-91-3)
- N-(4-methoxyphenethyl)benzamide (CAS 3278-19-1)
- 5-Fluoroisoquinoline-3-carbonitrile (CAS 1781452-04-7)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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