3,3'-((Pyridine-2,6-dicarbonyl)bis(azanediyl))bis(1-methylquinolin-1-ium) CAS 794458-56-3
| CAS No. | 794458-56-3 |
| Molecular Formula | C27H23N5O2 |
| Molecular Weight | 449.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3,3'-((Pyridine-2,6-dicarbonyl)bis(azanediyl))bis(1-methylquinolin-1-ium) (CAS 794458-56-3), molecular formula C27H23N5O2 and molecular weight 449.50 g/mol, is a CATO reference standard with documented purity and traceability.
3,3'-((Pyridine-2,6-dicarbonyl)bis(azanediyl))bis(1-methylquinolin-1-ium) (C27H23N5O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C27H23N5O2 |
| Molecular Weight | 449.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 5 |
Related Pyridine Standards
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- 4,4',4''-(Pyridine-2,4,6-triyl)tribenzoic acid (CAS 107063-53-6)
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Recommended Standards
- 2-((4-(4-Ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-fluorophenyl)acetamide (CAS 477332-67-5)
- 4-O-Benzyl-N-[(benzyloxy)carbonyl]-3-O-methyl-L-DOPA Methyl Ester (CAS 881911-31-5)
- 2-((4-(4-Ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-fluorophenyl)acetamide (CAS 477330-95-3)
- N-(2-(1-(tert-butyl)-2-(phenylcarbamoyl)hydrazine-1-carbonyl)phenyl)-3,5-dimethylisoxazole-4-carboxamide (CAS 866009-77-0)
- (S)-3-(Fmoc-amino)-4-(2,4-dichlorophenyl)butanoic Acid (CAS 270063-49-5)
- Teasterone (CAS 92751-21-8)
- Centrinone-B (CAS 1798871-31-4)
- 4-bromo-1-[(4-methoxyphenyl)methyl]-1H-pyrazole (CAS 1178371-93-1)
- (2-Cyanophenyl)methanesulfonyl Chloride (CAS 51045-34-2)
- 2,3-Dimethyl-1-((2,2,2-trichloroethoxy)sulfonyl)-1H-imidazol-3-ium trifluoromethanesulfonate (CAS 1185733-70-3)
- ethyl 2,6-dimethyl-1H-thieno[2,3-d]imidazole-5-carboxylate (CAS 2861252-45-9)
- Halometasone (CAS 50629-82-8)
- 2-Ethoxy-2,2-difluoroethan-1-amine hydrochloride (CAS 2194846-13-2)
- D-[Ser]8-Semaglutide (CAS CATO-CPTD788632)
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