m-Phenylenediamine Impurity 4 CAS CATO-C4X-34284
| CAS No. | CATO-C4X-34284 |
| Molecular Formula | C14H16N2 |
| Molecular Weight | 212.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including m-Phenylenediamine Impurity 4.
As a process- or degradation-related impurity, m-Phenylenediamine Impurity 4 (CAS CATO-C4X-34284, C14H16N2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, m-Phenylenediamine Impurity 4 is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 212.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), m-Phenylenediamine Impurity 4 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 | C14H16N2 |
| Molecular Weight | 212.29 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related m Standards
- m-Phenylenediamine Impurity 2 (CAS CATO-C4X-34282)
- m-Phenylenediamine Impurity 6 (CAS CATO-C4X-34286)
- m-Phenylenediamine Impurity 1 (CAS CATO-C4X-34281)
- m-Phenylenediamine Impurity 5 (CAS CATO-C4X-34285)
- m-Phenylenediamine Impurity 3 (CAS CATO-C4X-34283)
- 1,3-Phenylenediamine-4-sulfonic Acid (CAS 88-63-1)
- 1,4-phenylenediamine-d<SUB>8</SUB> (CAS 153200-73-8)
- 1,4-phenylenediamine-<SUP>15</SUP>N<SUB>2</SUB> (CAS 119516-82-4)
Recommended Standards
- Vazegepant Impurity 32 (CAS CATO-C4X-320032)
- 3,3＇-Dimethylbenzidine (CAS 119-93-7)
- Mirogabalin-15N-d2 (CAS CATO-C4X-292450)
- 2-(4'-Hydroxyphenyl)-2-phenylpropane (CAS 599-64-4)
- Ambroxol EP Impurity C (CAS 50910-53-7)
- Salbutamol Impurity 61 (CAS 238762-34-0)
- CAS 1333112-32-5 (CAS 1333112-32-5)
- N-cyclopentylpiperidine-3-sulfonamide (CAS 1016814-99-5)
- 2-(2-Nitrophenyl)-4-(pyren-1-ylmethylene)oxazol-5(4H)-one (CAS 71977-22-5)
- 5-[2-(4-Pyridinyl)ethynyl]-1,3-benzenedicarboxylic acid (CAS 2512740-30-4)
- N-(4-Chlorobenzo[d]thiazol-2-yl)-4-(isopropylthio)-N-(pyridin-3-ylmethyl)benzamide (CAS 920395-21-7)
- Potassium trifluoro(3-methylthiophen-2-yl)borate (CAS 2201050-63-5)
- 1-(tert-Butyl)-3-methyl-1H-pyrazole-5-carboxamide (CAS 1504561-70-9)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
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