3-Methoxy-N,N-diphenylaniline CAS 20588-62-9
| CAS No. | 20588-62-9 |
| Molecular Formula | C19H17NO |
| Molecular Weight | 275.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 3-Methoxy-N,N-diphenylaniline is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 275.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
3-Methoxy-N,N-diphenylaniline (CAS 20588-62-9), molecular formula C19H17NO and molecular weight 275.34 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 | C19H17NO |
| Molecular Weight | 275.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 3′-(Phenylmethoxy)[1,1′-biphenyl]-3-amine (CAS 400744-17-4)
- 3-Pyrrolidinecarboxylic acid, 1-[[4-(1,1-dimethylethyl)phenyl]methyl]-5-oxo- (CAS 927983-92-4)
- 3-[4-(Benzyloxy)phenyl]aniline (CAS 400744-34-5)
- 4-([1,1-Biphenyl]-2-yloxy)-2-methylphenylamine (CAS 946742-78-5)
- 2-Bromo-6-(dimethoxymethyl)pyridine (CAS 128507-76-6)
- 2-(Oxolan-2-yl)-1H-1,3-benzodiazol-5-amine (CAS 519019-53-5)
- (2-Chloro-4-(difluoromethyl)-5-iodopyridin-3-yl)methanol (CAS 1807060-99-6)
- Methyl (R)-6-(bromomethyl)-4-(2-chloro-4-fluorophenyl)-2-(thiazol-2-yl)-1,4-dihydropyrimidine-5-carboxylate (CAS 1578155-69-7)
- Paroxetine Impurity 47 (CAS 105813-40-9)
- 3-(p-Tolyl)-3H-[1,2,3]triazolo[4,5-b]pyridine (CAS 62052-17-9)
- Vildagliptin Impurity 64 (CAS 105-48-6)
- 3-Amino-1-(2-fluoro-5-methylphenyl)piperidin-2-one (CAS 1315365-31-1)
- [(Furan-2-yl)methyl](propan-2-yl)amine hydrochloride (CAS 610309-77-8)
- D-Gln24-Tirzepatide (CAS CATO-CPTD788910)
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