3-Bromo-[1,2,4]triazolo[4,3-α]pyridine CAS 4922-68-3
| CAS No. | 4922-68-3 |
| Molecular Formula | C6H4BrN3 |
| Molecular Weight | 198.02 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 3-Bromo-[1,2,4]triazolo[4,3-α]pyridine.
3-Bromo-[1,2,4]triazolo[4,3-α]pyridine (CAS 4922-68-3), molecular formula C6H4BrN3 and molecular weight 198.02 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Bromo-[1,2,4]triazolo[4,3-α]pyridine (C6H4BrN3) is characterized by a nitrile group, bromine substitution, an aromatic ring system. 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.
As a certified reference material (CRM), 3-Bromo-[1,2,4]triazolo[4,3-α]pyridine 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 | C6H4BrN3 |
| Molecular Weight | 198.02 g/mol |
| Appearance | Off-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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 2-Bromo-[1,2,4]triazolo[1,5-a]pyridine (CAS 1021019-03-3)
- 7-Bromo-[1,2,4]triazolo[1,5-a]pyridine (CAS 1053655-66-5)
- 6-Bromo-1,2-benzisoxazole (CAS 1060802-88-1)
- 7-Bromo-[1,2,3]triazolo[1,5-a]pyridine (CAS 107465-26-9)
- 6-Bromo-[1,2,4]triazolo[4,3-a]pyridine (CAS 108281-79-4)
- 4-Bromo-1H-imidazo[4,5-c]pyridine (CAS 1086398-12-0)
- 8-Bromo[1,2,4]triazolo[4,3-a]pyridine (CAS 1126824-74-5)
- 5-Bromo-4-methylpyrimidine-2-carbonitrile (CAS 114969-80-1)
Recommended Standards
- 2-Bromoimidazo[1,2-a]pyrazine (CAS 944896-33-7)
- 3-Bromo-4,7-diazaindole (CAS 56015-31-7)
- 2-Bromofuro[3,3-c]Pyridine (CAS 344354-00-3)
- 3-Bromo-4-hydroxybenzonitrile (CAS 2315-86-8)
- 1,3-Dimethyl-8-(phenylamino)-3,7-dihydro-1H-purine-2,6-dione (CAS 61034-15-9)
- 17 β-boldenone-[D3] (CAS 361432-76-0)
- 1-(Benzenesulfonyl)-6-chloro-pyrrolo[3,2-c]pyridine (CAS 1260382-88-4)
- 2-(4-Chlorobenzylidene)malononitrile (CAS 1867-38-5)
- 5-Bromo-2-(1-(methylsulfonyl)pyrrolidin-2-yl)pyridine (CAS 1361114-85-3)
- 2-(Ethyl(2-iodobenzyl)amino)acetic acid (CAS 1353961-66-6)
- 2-Furancarbonitrile, 3-fluoro- (CAS 2122319-19-9)
- Benzyl N-[(isopropylcarbamoyl)methyl]carbamate (CAS 78639-46-0)
- 5-Bromo-2h-[1,2'-bipyridin]-2-one (CAS 109822-11-9)
- D-β-Asp15-Tirzepatide (CAS CATO-CPTD788930)
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