1,2-Dimethyl-4-nitro-1H-benzo[d]imidazole CAS 73902-41-7
| CAS No. | 73902-41-7 |
| Molecular Formula | C9H9N3O2 |
| Molecular Weight | 191.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,2-Dimethyl-4-nitro-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.
CATO supplies 1,2-Dimethyl-4-nitro-1H-benzo[d]imidazole (CAS 73902-41-7), a certified reference material (molecular formula C9H9N3O2, MW 191.19 g/mol) for analytical method development and quality control.
The molecular framework of 1,2-Dimethyl-4-nitro-1H-benzo[d]imidazole (C9H9N3O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C9H9N3O2 |
| Molecular Weight | 191.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 3 |
Related Dimethyl Standards
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Recommended Standards
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- KPT-330 (CAS 1421923-86-5)
- Olanzapine-d3 (CAS 786686-79-1)
- n-(4h-1,2,4-Triazol-3-yl)quinoline-8-carboxamide (CAS 1050813-17-6)
- Ethyl 6-amino-4-(4-(tert-butyl)phenyl)-5-cyano-2-(((3-cyano-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-2-yl)thio)methyl)-4H-pyran-3-carboxylate (CAS 445384-33-8)
- 3-Fluoro-4-methylbenzonitrile (CAS 170572-49-3)
- 3-(Diphenylphosphoryl)butan-2-yl carbamate (CAS 88167-95-7)
- 3,5-Difluoro-2,2-dimethylbutyrophenone (CAS 898766-06-8)
- Des-Leu14-Tirzepatide (CAS CATO-CPTD788959)
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