1-(2-Bromo-4-chlorophenyl)-1H-1,2,4-triazole CAS 1779784-38-1
| CAS No. | 1779784-38-1 |
| Molecular Formula | C8H5BrClN3 |
| Molecular Weight | 258.50 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 1-(2-Bromo-4-chlorophenyl)-1H-1,2,4-triazole.
1-(2-Bromo-4-chlorophenyl)-1H-1,2,4-triazole (CAS 1779784-38-1), molecular formula C8H5BrClN3 and molecular weight 258.50 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-(2-Bromo-4-chlorophenyl)-1H-1,2,4-triazole (C8H5BrClN3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 1-(2-Bromo-4-chlorophenyl)-1H-1,2,4-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 | C8H5BrClN3 |
| Molecular Weight | 258.50 g/mol |
| Appearance | Off-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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
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Recommended Standards
- 8-Bromo-7-chloroquinolin-4-ol (CAS 1701817-32-4)
- 6-Bromo-5-chloro-1h-indole-3-carbaldehyde (CAS 1781423-16-2)
- 6-Bromo-5-chloroquinazolin-2-amine, 97% (CAS 1644663-97-7)
- 4-(2-Bromoacetyl)-2-chloro-benzonitrile (CAS 182626-08-0)
- (6-Chloroquinolin-4-yl)boronic acid (CAS 1312794-10-7)
- 4,4-Dimethyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d][1,3]oxazin-2(4H)-one (CAS 1246765-40-1)
- 1',3'-Dihydrospiro[azetidine-2,2'-benzo[d]pyrrolo[1,2-a]imidazole] (CAS 174125-51-0)
- N-methyl-1-(4-(thiazol-2-yl)phenyl)methanamine (CAS 886851-31-6)
- 1,1'-(5,5-Dihydroxydihydropyrimidine-1,3(2H,4H)-diyl)bis(propan-1-one) (CAS 393056-46-7)
- Cyclohexylmethylhydrazine hydrochloride (CAS 1068976-78-2)
- 2-[1-(ethanesulfonyl)piperidin-4-ylidene]acetonitrile (CAS 2102412-13-3)
- 6-Bromo-1-(cyclopropylmethyl)-1H-pyrrolo[2,3-b]pyridine-2-carbaldehyde (CAS 2792721-53-8)
- 5-Hexyl-2-(4-(2-hydroxyethyl)-3-methyl-5-oxo-2,5-dihydro-1H-pyrazol-1-yl)-6-methylpyrimidin-4(3H)-one (CAS 866138-06-9)
- Acetyl Tetrapeptide- 15 (CAS 928007-64-1)
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