4-((4-Chlorophenyl)diazenyl)-N,N-dimethylaniline CAS 2491-76-1
| CAS No. | 2491-76-1 |
| Molecular Formula | C14H14ClN3 |
| Molecular Weight | 259.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-((4-Chlorophenyl)diazenyl)-N,N-dimethylaniline 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.
4-((4-Chlorophenyl)diazenyl)-N,N-dimethylaniline (CAS 2491-76-1), molecular formula C14H14ClN3 and molecular weight 259.73 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H14ClN3, 4-((4-Chlorophenyl)diazenyl)-N,N-dimethylaniline contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 259.73 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C14H14ClN3 |
| Molecular Weight | 259.73 g/mol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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