(1E,1'E)-1,1'-(1,4-Phenylene)bis(N-(pyridin-4-yl)methanimine) CAS 324068-05-5
| CAS No. | 324068-05-5 |
| Molecular Formula | C18H14N4 |
| Molecular Weight | 286.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, (1E,1'E)-1,1'-(1,4-Phenylene)bis(N-(pyridin-4-yl)methanimine) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 286.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
(1E,1'E)-1,1'-(1,4-Phenylene)bis(N-(pyridin-4-yl)methanimine) (CAS 324068-05-5) is a high-purity analytical reference standard with the molecular formula C18H14N4 and a molecular weight of 286.33 g/mol.
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 | C18H14N4 |
| Molecular Weight | 286.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 2025 |
| Nitrogen Atoms | 4 |
Recommended Standards
- (1-(4-Methoxybenzyl)-2,3-dihydro-1H-pyrido[3,4-b][1,4]oxazin-3-yl)methanol (CAS 2913148-77-1)
- (2,4-Diethoxypyrimidin-5-yl)(p-tolyl)methanone (CAS 93019-73-9)
- N-(4-Methoxyphenyl)-3-methyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-1-carboxamide (CAS 1956386-25-6)
- (2E)-2-[(E)-4,4-Dimethyl-1,3-oxazolidine-3-carbonyl]-3-(4-methoxyphenyl)prop-2-enenitrile (CAS 866041-97-6)
- 1-Morpholin-4-yl-2-piperidin-4-yl-ethanone dihydrochloride (CAS 1185296-25-6)
- N-(4-Amino-2-methylphenyl)-4-(2-ethoxyethoxy)-benzamide (CAS 1020055-88-2)
- 5-(5-Methylthiophen-2-yl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine (CAS 861443-59-6)
- 3-(Trifluoromethyl)-dl-phenylalanine 2-amino-3-(3-trifluoromethyl-phenyl)-propionic acid 3-trifluoromethyl-dl-phenylalanine dl-3-trifluoromethylphenylalanine 2-amino-3-(3-(trifluoromethyl)phenyl)propanoic acid 2-amino-3-[3-(trifluoromethyl)phenyl]propanoic acid DL-3-(Trifluoromethyl)phenylalanine 63701-37-1 (CAS 63701-37-1)
- Methyl 2-(chloromethyl)imidazo[1,2-a]pyridine-8-carboxylate hydrochloride (CAS 1258639-80-3)
- 4-(Ethoxycarbonyl)-2-methylphenylboronic acid (CAS 2096339-62-5)
- tert-Butyl (3-bromo-2,2-dimethylpropyl)carbamate (CAS 1397707-56-0)
- 2-(1-(tert-Butoxycarbonyl)pyrrolidin-2-yl)cyclopropanecarboxylic acid (CAS 1781122-64-2)
- Esomeprazole Impurity 136 (CAS 2561418-28-6)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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