1-(4-Bromo-2-chlorophenyl)-4-(chloromethyl)-1H-1,2,3-triazole CAS 1251373-65-5
| CAS No. | 1251373-65-5 |
| Molecular Formula | C9H6BrCl2N3 |
| Molecular Weight | 306.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(4-Bromo-2-chlorophenyl)-4-(chloromethyl)-1H-1,2,3-triazole (CAS 1251373-65-5), molecular formula C9H6BrCl2N3 and molecular weight 306.97 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution, 1-(4-Bromo-2-chlorophenyl)-4-(chloromethyl)-1H-1,2,3-triazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 306.97 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 1-(4-Bromo-2-chlorophenyl)-4-(chloromethyl)-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 | C9H6BrCl2N3 |
| Molecular Weight | 306.97 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 |
| 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.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- 5-(5,5-Dimethyl-1,3-dioxan-2-yl)-1-(3-phenoxyphenyl)pentan-1-one (CAS 898782-94-0)
- Methyl 4-[(ethoxycarbonylmethyl)amino]-3-nitrobenzoate (CAS 1381944-43-9)
- 2-(4-(Pyrrolidin-1-ylsulfonyl)phenyl)isonicotinic acid (CAS 1262010-22-9)
- Methyl4-chloro-2-oxo-1,3-dihydropyrrolo[2,3-b]pyridine-5-carboxylate (CAS 2090335-30-9)
- 4-(1H-Indol-5-yl)-1H-pyrazolo[3,4-b]pyridine-6-carboxamide (CAS 918132-97-5)
- 2-(trifluoroacetyl)-2,3,4,5-tetrahydro-1H-2-benzazepin-5-one (CAS 1422496-44-3)
- Mitogenic Pentapeptide (CAS 87173-03-3)
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