4-Ethynyl-N,N-diphenylaniline CAS 205877-26-5
| CAS No. | 205877-26-5 |
| Molecular Formula | C20H15N |
| Molecular Weight | 269.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| 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 4-Ethynyl-N,N-diphenylaniline.
CATO supplies 4-Ethynyl-N,N-diphenylaniline (CAS 205877-26-5), a certified reference material (molecular formula C20H15N, MW 269.34 g/mol) for analytical method development and quality control.
The molecular framework of 4-Ethynyl-N,N-diphenylaniline (C20H15N) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. 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. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Ethynyl-N,N-diphenylaniline 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 | C20H15N |
| Molecular Weight | 269.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 1 |
Related Ethynyl Standards
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Recommended Standards
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- 9-(4-Aminobenzyl)-2-chloro-N,N-dimethyl-9H-purin-6-amine (CAS 115204-62-1)
- N-(3-Hydroxypropyl)piperidine-3-carboxamide (CAS 496057-59-1)
- 3-Bromo-2-fluoro-6-methylbenzaldehyde (CAS 1518000-45-7)
- 2-(3,3-Difluoroazetidin-1-yl)-3-fluoropyridine (CAS 1707365-43-2)
- Methyl 2-amino-4-chloro-5-nitrobenzoate (CAS 78795-16-1)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
Why CATO?
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