1,2,3,5-Tetrachloro-4,6-dinitrobenzene CAS 28073-03-2
| CAS No. | 28073-03-2 |
| Molecular Formula | C6Cl4N2O4 |
| Molecular Weight | 305.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
1,2,3,5-Tetrachloro-4,6-dinitrobenzene (CAS 28073-03-2) is a high-purity analytical reference standard with the molecular formula C6Cl4N2O4 and a molecular weight of 305.89 g/mol.
Based on its molecular formula C6Cl4N2O4, 1,2,3,5-Tetrachloro-4,6-dinitrobenzene contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 305.89 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C6Cl4N2O4 |
| Molecular Weight | 305.89 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 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Tetrachloro Standards
- 1,2,3,4-Tetrachloro-5,6-dinitrobenzene (CAS 781-15-7)
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Recommended Standards
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- ACRYLONITRILE, 2-(p-CHLOROPHENYL)-3-PHENYL- (CAS 3695-93-0)
- 2',4'-Difluoro-[1,1'-biphenyl]-4-ol (CAS 59089-68-8)
- 5-Ethoxy-2-fluoro-4-iodopyridine (CAS 1805067-47-3)
- 1-(Tert-butoxycarbonyl)-4-hydroxy-2,2-dimethylpiperidine-4-carboxylic acid (CAS 2279659-47-9)
- 3-Amino-N-(propan-2-yl)butanamide (CAS 1179165-39-9)
- Methyl-benzene-1,3,5-tricarboxylic acid (CAS 32971-88-3)
- Des-His(1)-Semaglutide (CAS CATO-C4X-2226216)
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