4-chloro-2-(3-chlorophenyl)aniline CAS 1521784-05-3
| CAS No. | 1521784-05-3 |
| Molecular Formula | C12H9Cl2N |
| Molecular Weight | 238.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H9Cl2N, 4-chloro-2-(3-chlorophenyl)aniline 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 238.11 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).
4-chloro-2-(3-chlorophenyl)aniline (CAS 1521784-05-3), molecular formula C12H9Cl2N and molecular weight 238.11 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C12H9Cl2N |
| Molecular Weight | 238.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related chloro Standards
- 4-chloro-2-(4-chlorophenyl)aniline (CAS 1101170-85-7)
- 2-(Chloro(4-chlorophenyl)methyl)pyridine (CAS 142404-69-1)
- 4-chloro-2-(2-chlorophenyl)aniline (CAS 1539944-12-1)
- 4-chloro-1-methyl-pyrazolo[4,3-c]pyridine-6-carbonyl chloride (CAS 2633010-65-6)
- 5-Chloro-4-(2-chloroethyl)-3-methyl-1h-pyrazole-1-carbothioamide (CAS 1334147-79-3)
- 5-Chloro-1-(4-chlorophenyl)-1H-pyrazole-4-carbonitrile (CAS 102996-32-7)
- 5-Chloro-1-(3-chlorophenyl)-1H-pyrazole-4-carbonitrile (CAS 102996-33-8)
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Recommended Standards
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- 2,2'-(Benzofuran-2,6-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 919119-75-8)
- 1-(3,4-Difluorophenoxy)-3-methyl-2-butanamine (CAS 883536-71-8)
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