5,6-dibromo-1H-benzimidazole CAS 74545-26-9
| CAS No. | 74545-26-9 |
| Molecular Formula | C7H4Br2N2 |
| Molecular Weight | 275.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,6-dibromo-1H-benzimidazole (C7H4Br2N2) contains a nitrile group, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5,6-dibromo-1H-benzimidazole (CAS 74545-26-9), molecular formula C7H4Br2N2 and molecular weight 275.93 g/mol, is a CATO reference standard with documented purity and traceability.
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), 5,6-dibromo-1H-benzimidazole 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.) | 1978 |
| 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)
- 3,6-Dibromo-1H-pyrrolo[3,2-b]pyridine (CAS 1190312-18-5)
Recommended Standards
- 4-Amino-3,5-dibromobenzonitrile (CAS 58633-04-8)
- 5,7-Dibromo-1H-indazole (CAS 50477-28-6)
- 4,7-Dibromo-1H-pyrrolo[3,2-c]pyridine (CAS 871819-35-1)
- 6-(dibromomethyl)picolinonitrile (CAS 85148-97-6)
- Diethyl 2-((3-chloro-4-methylphenylamino)methylene)malonate (CAS 103976-11-0)
- (3-Fluoro-4-((2-methylpyridin-4-yl)oxy)phenyl)boronic acid pinacol ester, 97% (CAS 1200124-19-1)
- 2-(3-(Difluoromethoxy)-4-methoxyphenyl)ethanethioamide (CAS 1193389-41-1)
- 1-(Piperidin-3-yl)propan-1-one (CAS 1177307-97-9)
- 3-Fluoro-4-(piperidin-1-ylmethyl)benzenethiol (CAS 1443355-31-4)
- (E)-N-[(anthracen-9-yl)methylidene]hydroxylamine 1942-19-4 MS-8948 (CAS 1942-19-4)
- Tri-sec-butylphosphine (CAS 17586-49-1)
- Cefminox Impurity 25 (CAS CATO-C4X-192625)
- 2,4,6-Trifluoro-3-nitropyridine (CAS 60186-17-6)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
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