N-(3,4-Dimethylphenyl)-2,2-diphenylacetamide CAS 70298-69-0
| CAS No. | 70298-69-0 |
| Molecular Formula | C22H21NO |
| Molecular Weight | 315.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of N-(3,4-Dimethylphenyl)-2,2-diphenylacetamide (C22H21NO) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
N-(3,4-Dimethylphenyl)-2,2-diphenylacetamide (CAS 70298-69-0), molecular formula C22H21NO and molecular weight 315.41 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.
As a certified reference material (CRM), N-(3,4-Dimethylphenyl)-2,2-diphenylacetamide 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 | C22H21NO |
| Molecular Weight | 315.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 1 |
Related N Standards
- N-(2,6-Dimethylphenyl)-2,2-diphenylacetamide (CAS 18109-40-5)
- N-(2,4-Dimethylphenyl)-2,2-diphenylacetamide (CAS 70298-68-9)
- N-(2,5-Dimethylphenyl)-2,2-diphenylacetamide (CAS 70298-67-8)
- N-(3,5-Dimethylphenyl)-2,2-diphenylacetamide (CAS 70298-70-3)
- (4-(2,3-Dimethylphenyl)piperazin-1-yl)(4-methylpiperidin-1-yl)methanone (CAS 890605-14-8)
- 5-[(E)-2-[(3,4-Dimethylphenyl)amino]ethenyl]-3-phenyl-1,2-oxazole-4-carbonitrile (CAS 303995-72-4)
- N-(2,6-Dimethylphenyl)-5-(pyridin-4-yl)imidazo[1,5-a]pyrazin-8-amine (CAS 849200-70-0)
- 3-(2,4-Dimethylphenyl)-4-iodo-1,2,3-oxadiazol-3-ium-5-olate (CAS 358334-40-4)
Recommended Standards
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- (1R,2S,3R,4S)-3-Amino-7-oxabicyclo[2.2.1]heptane-2-carboxamide (CAS 1932246-30-4)
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- 3-Phenethylamino-propionitrilehydrochloride (CAS 73605-24-0)
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- 5-(4-(1H-1,2,4-Triazol-1-yl)phenyl)-2H-tetrazole (CAS 1423810-54-1)
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- 2-((6-Chloro-4-(trifluoromethyl)pyridin-2-yl)thio)-N-ethylacetamide (CAS 1431555-22-4)
- 2-(6-Methylimidazo[2,1-b]thiazol-5-yl)-5-((3-(trifluoromethyl)benzyl)thio)-1,3,4-oxadiazole (CAS 339103-29-6)
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