5,6-Dibromo-1H-indazole CAS 1781019-74-6
| CAS No. | 1781019-74-6 |
| Molecular Formula | C7H4Br2N2 |
| Molecular Weight | 275.93 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 5,6-Dibromo-1H-indazole.
5,6-Dibromo-1H-indazole (CAS 1781019-74-6) is a high-purity analytical reference standard with the molecular formula C7H4Br2N2 and a molecular weight of 275.93 g/mol.
Owing to a nitrile group, bromine substitution, an aromatic ring system, 5,6-Dibromo-1H-indazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 275.93 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 5,6-Dibromo-1H-indazole 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 | C7H4Br2N2 |
| Molecular Weight | 275.93 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Dibromo Standards
- 3,4-Dibromo-7-azaindole (CAS 1000340-33-9)
- 4,6-Dibromo-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-66-8)
- 3,6-Dibromo-1H-pyrrolo[3,2-c]pyridine (CAS 1000341-69-4)
- 3,4-Dibromo-1H-pyrrolo[3,2-c]pyridine (CAS 1000341-83-2)
- 106072-43-9 2,6-Dibromo-1H-benzimidazole DTXSID20544178 (CAS 106072-43-9)
- 3,5-Dibromo-1H-pyrrolo[2,3-b]pyridine (CAS 1086389-94-7)
- 3,5-Dibromo-1H-pyrrolo[3,2-b]pyridine (CAS 1190311-07-9)
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Recommended Standards
- 3,7-Dibromo-1H-indazole (CAS 1541407-14-0)
- 2,7-Dibromoimidazo[1,2-a]pyridine (CAS 1782895-02-6)
- 6,8-Dibromoimidazo[1,5-a]pyridine (CAS 1427398-85-3)
- 2-(4,6-Dibromopyridin-2-yl)acetonitrile (CAS 1806329-04-3)
- 5-Chloro-1-methyl-1H-pyrrolo[3,2-b]pyridine-3-carbonitrile (CAS 2092745-18-9)
- 2-(2-chloro-5-fluorophenyl)acetaldehyde (CAS 1256482-24-2)
- Dibenzyl 4,4'-(1,4-phenylene)bis(piperidine-1-carboxylate) (CAS 2097673-46-4)
- MEthyl 6-(pentyloxy)-1h-indole-2-carboxylate (CAS 881041-48-1)
- 4-(1,5-Dimethyl-1H-pyrazol-4-yl)-thiazol-2-ylamine 4-(1,5-dimethyl-1 h-pyrazol-4-yl)-thiazol-2-ylamine 4-(1,5-dimethyl-1h-pyrazol-4-yl)-1,3-thiazol-2-amine 957242-02-3 (CAS 957242-02-3)
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- N-(2-Bromobenzyl)-N-butyl-N-methylamine (CAS 764667-50-7)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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