Tris(4-ethynylphenyl)amine CAS 189178-09-4
| CAS No. | 189178-09-4 |
| Molecular Formula | C24H15N |
| Molecular Weight | 317.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 317.38 g/mol gives Tris(4-ethynylphenyl)amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Tris(4-ethynylphenyl)amine (CAS 189178-09-4) is a high-purity analytical reference standard with the molecular formula C24H15N and a molecular weight of 317.38 g/mol.
Tris(4-ethynylphenyl)amine (C24H15N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C24H15N |
| Molecular Weight | 317.38 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Nitrogen Atoms | 1 |
Related Tris Standards
- N-(3-Ethynylphenyl)-7-methoxy-6-nitroquinazolin-4-amine (CAS 183321-60-0)
- N-(3-Ethynylphenyl)-4-methyl-3-(trifluoromethyl)benzamide (CAS 2499499-11-3)
- 4-((3-Ethynylphenyl)amino)-7-methoxyquinazolin-6-yl acetate (CAS 905306-07-2)
- 4’-(4-Ethynylphenyl)-2,2’:6’,2’’-terpyridine (CAS 149817-61-8)
- N4-(3-Ethynylphenyl)-7-(2-methoxyethoxy)quinazoline-4,6-diamine (CAS 1314492-65-3)
- 4-[(3-Ethynylphenyl)amino]-6-(2-methoxyethoxy)-7-quinazolinol (CAS 183320-72-1)
- 4-[(3-Ethynylphenyl)amino]-7-(2-methoxyethoxy)-6-quinazolinol (CAS 183322-38-5)
- 5-((3-Ethynylphenyl)amino)pyrimido[4,5-c]quinoline-8-carboxylic acid (CAS 1009821-06-0)
Recommended Standards
- 5-(tert-Butyl)1-methyl(tert-Butoxycarbonyl)-l-glutamate (CAS 18635-51-3)
- 1-(1-(tert-Butoxycarbonyl)indolin-5-yl)cyclobutane-1-carboxylic acid (CAS 1891793-85-3)
- Di-tert-butyl 1H-indole-1,6-dicarboxylate (CAS 1823244-46-7)
- 1-(1-(Tert-butoxycarbonyl)-1,2,3,4-tetrahydroquinolin-6-yl)cyclopropane-1-carboxylic acid (CAS 1898351-36-4)
- 1-Benzyl 3-methyl (R)-piperazine-1,3-dicarboxylate (CAS 405175-79-3)
- 5-(((9h-Fluoren-9-yl)methoxy)carbonyl)-4,5,6,7-tetrahydro-3h-imidazo[4,5-c]pyridine-6-carboxylic acid (CAS 1531550-29-4)
- (E)-1-(4-methyl-2-(pyridin-2-yl)thiazol-5-yl)-3-phenylprop-2-en-1-one (CAS 477847-80-6)
- Baclofen Impurity 7 (CAS 5045-65-8)
- 3-Decyl-2-thioxooxazolidin-4-one (CAS 85877-81-2)
- Isotretinoin (CAS 4759-48-2)
- 2-Chloro-5-(morpholinosulfonyl)-1H-indole-3-carbaldehyde (CAS 535925-62-3)
- Glycyrrhizic acid ammonium salt trihydrate (CAS 911217-00-0)
- 2-(tert-Butyl)-3-cyclopropoxy-5-isopropylpyridine (CAS 1243389-49-2)
- Tirzepatide Impurity 23 X TFA Salt (CAS CATO-C4X-324023)
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