2-((2,5-dimethylphenyl)amino)benzoic acid CAS 21193-38-4
| CAS No. | 21193-38-4 |
| Molecular Formula | C15H15NO2 |
| Molecular Weight | 241.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-((2,5-dimethylphenyl)amino)benzoic acid (CAS 21193-38-4), molecular formula C15H15NO2 and molecular weight 241.29 g/mol, is a CATO reference standard with documented purity and traceability.
2-((2,5-dimethylphenyl)amino)benzoic acid (C15H15NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), 2-((2,5-dimethylphenyl)amino)benzoic acid 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 | C15H15NO2 |
| Molecular Weight | 241.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1963 |
| Nitrogen Atoms | 1 |
Related dimethylphenyl Standards
- N-(2,3-DImethylphenyl)-3-hydroxybenzamide (CAS 1019124-36-7)
- N-(2,5-DImethylphenyl)-3-hydroxybenzamide (CAS 1019362-63-0)
- n-(2,4-Dimethylphenyl)-2-hydroxybenzamide (CAS 120167-67-1)
- Methyl 6-(3,5-dimethylphenyl)pyridine-2-carboxylate (CAS 1393442-25-5)
- 2-((2,6-Dimethylphenyl)Amino)Benzoic Acid (CAS 18201-61-1)
- Methyl 5-(3,5-dimethylphenyl)pyridine-3-carboxylate (CAS 1820647-14-0)
- Methyl 4-(2,4-dimethylphenyl)pyridine-2-carboxylate (CAS 1820649-68-0)
- Methyl 6-(2,4-dimethylphenyl)pyridine-2-carboxylate (CAS 1820717-30-3)
Recommended Standards
- 2-((2,4-dimethylphenyl)amino)benzoic acid (CAS 27210-58-8)
- Pramipexole Impurity 35 (CAS 1798431-88-5)
- 4-((2,3-dimethylphenyl)amino)benzoic acid (CAS 282727-27-9)
- Agomelatine Impurity 42 (CAS CATO-C4X-110842)
- (2-Chloro-6-fluoro-3-nitrophenyl)methanol (CAS 206884-31-3)
- 2-Amino-9-(3,5-dihydroxypentyl)-1H-purin-6(9H)-one (CAS 128631-61-8)
- 9-Methyl-2,9-diazaspiro[5.5]undecan-1-one (CAS 1228552-71-3)
- n-(4-Cyanophenyl)-3-methylbut-2-enamide (CAS 1181512-85-5)
- tert-Butyl 3-(2-amino-2-thioxoethyl)piperidine-1-carboxylate (CAS 1260667-06-8)
- 4-(2-methylpropyl)-3-(pyrrolidin-2-yl)-4H-1,2,4-triazole (CAS 1247132-63-3)
- 2-((3-Chlorophenyl)thio)-N-(4-phenylthiazol-2-yl)acetamide (CAS 338957-86-1)
- 4-Methanehydrazonoylbenzene-1,2,3-triol (CAS 1865681-56-6)
- 2,6-Dimethyl-5-phenylpyrimidin-4(3H)-one (CAS 57646-86-3)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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