3,4-Dinitrobenzonitrile CAS 4248-33-3
| CAS No. | 4248-33-3 |
| Molecular Formula | C7H3N3O4 |
| Molecular Weight | 193.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3,4-Dinitrobenzonitrile (C7H3N3O4) 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).
3,4-Dinitrobenzonitrile (CAS 4248-33-3) is a high-purity analytical reference standard with the molecular formula C7H3N3O4 and a molecular weight of 193.12 g/mol.
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), 3,4-Dinitrobenzonitrile 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 | C7H3N3O4 |
| Molecular Weight | 193.12 g/mol |
| Appearance | Pale yellow to 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 methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
Related Dinitrobenzonitrile Standards
Recommended Standards
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- 6-(4-Fluorophenyl)pyrazolo[1,5-a]pyrimidine (CAS 1036762-04-5)
- 6-((3-(Piperidin-1-yl)propyl)amino)quinoline-5,8-dione (CAS 35976-67-1)
- 1-{[(4-Aminobutyl)amino]methyl}cyclobutan-1-ol (CAS 2169432-27-1)
- N-(5-Bromo-2-hydroxyphenyl)methanesulfonamide (CAS 1243365-69-6)
- 2,2-Dimethyl-1,3-dioxolane-4-methanol 4-Methanesulfonate-d5 (CAS 1346604-82-7)
- D-[Ser]8-Semaglutide (CAS CATO-CPTD788632)
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