2,7-Dichloro-1H-benzo[d]imidazole CAS 15965-56-7
| CAS No. | 15965-56-7 |
| Molecular Formula | C7H4Cl2N2 |
| Molecular Weight | 187.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 187.03 g/mol gives 2,7-Dichloro-1H-benzo[d]imidazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2,7-Dichloro-1H-benzo[d]imidazole (CAS 15965-56-7), a certified reference material (molecular formula C7H4Cl2N2, MW 187.03 g/mol) for analytical method development and quality control.
Owing to a nitrile group, chlorine substitution, an aromatic ring system, 2,7-Dichloro-1H-benzo[d]imidazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 187.03 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.
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), 2,7-Dichloro-1H-benzo[d]imidazole 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 | C7H4Cl2N2 |
| Molecular Weight | 187.03 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.) | 1961 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- 4,7-Dichloro-1H-indazole (CAS 1000341-86-5)
- 5,7-Dichloro-1H-pyrrolo[2,3-c]pyridine, 97% (CAS 1001412-41-4)
- 2,5-Dichloro-4-methylpyridine-3-carbonitrile (CAS 101320-87-0)
- 3,4-Dichloro-1H-pyrrolo[3,2-c]pyridine (CAS 117332-47-5)
- 4,6-Dichloro-2-methylnicotinonitrile (CAS 1185190-81-1)
- 3,7-Dichloro-1H-pyrrolo[3,2-b]pyridine (CAS 1190315-15-1)
- 3,7-Dichloro-1H-pyrrolo[2,3-c]pyridine (CAS 1190317-44-2)
- 3,5-Dichloro-1H-pyrrolo[2,3-b]pyridine (CAS 1190317-53-3)
Recommended Standards
- (3,5-Dichloro-pyridin-2-yl)-acetonitrile (CAS 158141-35-6)
- 4-Bromo-1,1-difluoro-3-methylbutane (CAS 1783578-17-5)
- 2-Bromo-5-methylphenol (CAS 14847-51-9)
- 2,7-Dichloroimidazo[1,2-a]pyridine (CAS 190074-50-1)
- 2-Acetyl-4-bromothiophene (CAS 7209-11-2)
- 2-(Thiophen-2-ylmethylene)hydrazine-1-carbothioamide (CAS 5351-91-7)
- 2-Deoxy-D-ribose 1,3,4-Triacetate (CAS 4258-01-9)
- 3-Bromo-4-chloro-2-(trifluoromethyl)pyridine (CAS 1211536-37-6)
- [1-(4-chlorophenyl)-1h-pyrazol-3-yl]methanol (CAS 1354746-01-2)
- Polaprezinc impurity 28 (CAS CATO-C4X-182128)
- 7,8-Dihydronaphthalen-2-Ol (CAS CATO-C3D-262610)
- 5-Bromothiazole-2-carboxamide (CAS 957345-64-1)
- 1-(5,6,7,8-Tetrahydroquinolin-3-yl)ethanone (CAS 1783951-43-8)
- Semaglutide impurity 86 (CAS CATO-C4X-222686)
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