4-Bromo-2-ethyl-2H-1,2,3-triazole CAS 1248676-97-2
| CAS No. | 1248676-97-2 |
| Molecular Formula | C4H6BrN3 |
| Molecular Weight | 176.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Bromo-2-ethyl-2H-1,2,3-triazole.
4-Bromo-2-ethyl-2H-1,2,3-triazole (CAS 1248676-97-2), molecular formula C4H6BrN3 and molecular weight 176.01 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Bromo-2-ethyl-2H-1,2,3-triazole (C4H6BrN3) contains a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 176.01 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 4-Bromo-2-ethyl-2H-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 | C4H6BrN3 |
| Molecular Weight | 176.01 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.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 5-Bromo-1,4-dimethyl-1H-1,2,3-triazole (CAS 1040275-55-5)
- 4-Bromo-3,5-dimethylisoxazole (CAS 10558-25-5)
- 1240612-08-1 2-Bromo-4,5-dimethyl-1,3-oxazole DTXSID50622352 (CAS 1240612-08-1)
- 3-Bromo-5,6-dihydropyridin-2(1H)-one (CAS 1258849-38-5)
- 5-Bromo-3-ethyl-isoxazole (CAS 1314961-74-4)
- 5-Bromo-2-ethyloxazole (CAS 1391740-26-3)
- 4-Bromo-1-ethyl-1H-1,2,3-triazole (CAS 1393532-87-0)
- 5-Bromo-1-ethyl-1H-1,2,3-triazole (CAS 1393560-22-9)
Recommended Standards
- 4-(Bromomethyl)-1-methyl-1h-1,2,3-triazole (CAS 1249688-99-0)
- (5-Bromofuran-3-yl)methanamine (CAS 1201809-75-7)
- 1-(2-Bromoethyl)-1,2,3-triazole (CAS 1083172-01-3)
- 2-(2-Bromoethyl)-2H-1,2,3-triazole (CAS 1260901-96-9)
- Trt-PEG4-C2-acid (CAS 882847-05-4)
- 4-[2-(2,6-dioxo-3-piperidyl)-1,3-dioxo-isoindolin-4-yl]butanal (CAS 2503018-11-7)
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