2-(((1-Butyl-5-cyano-2-hydroxy-4-methyl-6-oxo-1,6-dihydropyridin-3-yl)methylene)amino)benzoic acid CAS 883278-88-4
| CAS No. | 883278-88-4 |
| Molecular Formula | C19H19N3O4 |
| Molecular Weight | 353.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-(((1-Butyl-5-cyano-2-hydroxy-4-methyl-6-oxo-1,6-dihydropyridin-3-yl)methylene)amino)benzoic acid (C19H19N3O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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.
2-(((1-Butyl-5-cyano-2-hydroxy-4-methyl-6-oxo-1,6-dihydropyridin-3-yl)methylene)amino)benzoic acid (CAS 883278-88-4) is a high-purity analytical reference standard with the molecular formula C19H19N3O4 and a molecular weight of 353.37 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.
As a certified reference material (CRM), 2-(((1-Butyl-5-cyano-2-hydroxy-4-methyl-6-oxo-1,6-dihydropyridin-3-yl)methylene)amino)benzoic acid 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 | C19H19N3O4 |
| Molecular Weight | 353.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Butyl Standards
- Ethyl 2-((4-cyano-3-methylbenzo[4,5]imidazo[1,2-a]pyridin-1-yl)thio)butanoate (CAS 879919-61-6)
- N-(2-Cyano-3-methylbutan-2-yl)-2-((2-(phenylthio)phenyl)amino)acetamide (CAS 1010553-25-9)
- 2-(5-Cyano-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)ethyl 3-(trifluoromethyl)benzoate (CAS 320420-10-8)
- Ethyl 4-cyano-3-iodo-5-(methylthio)thiophene-2-carboxylate (CAS 861965-82-4)
- 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 4-chloro-2-nitrobenzoate (CAS 878219-12-6)
- Ethyl 2-cyano-3-iodo-1-methyl-1H-indole-5-carboxylate (CAS 1332606-99-1)
- 2-(2-cyano-3-fluoroanilino)ethyl N-(1,2,2-trichlorovinyl)carbamate (CAS 647824-11-1)
- 4-(((3-Cyano-5,6,7,8,9,10-hexahydrocycloocta[b]pyridin-2-yl)thio)methyl)benzoic acid (CAS 497243-86-4)
Recommended Standards
- 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(oxetan-3-yl)acetic acid (CAS 2171691-13-5)
- 2-((1-(((9H-fluoren-9-yl)methoxy)carbonyl)azetidin-3-yl)oxy)acetic acid (CAS 2094394-76-8)
- 1-(4-(1-(2,4-Difluorophenyl)-1H-pyrazol-5-yl)phenyl)-3,3-dimethylazetidin-2-one (CAS 320422-75-1)
- 2-((Bis(pyridin-3-ylmethyl)amino)methyl)-3-hydroxy-6-(hydroxymethyl)-4H-pyran-4-one (CAS 866019-65-0)
- 2-(Methylthio)-5-(trifluoromethoxy)benzo[d]oxazole (CAS 909854-66-6)
- 1-(5-Methyl-2,3,3a,4-tetrahydrocycloocta[b]furan-7-yl)ethanone (CAS 142867-70-7)
- tert-Butyl (S)-2-(aminooxy)-3-methylbutanoate (CAS 2767028-18-0)
- 2-(Cyclopropyl(3-nitrobenzyl)amino)acetic acid (CAS 1184646-60-3)
- 1-(4-Fluorophenoxy-d4)-2-(3,5-dinitrobenzoate)3-butyn-2-ol (CAS 1346599-32-3)
- 4-Methyl-1-(thiophen-3-ylmethyl)-1h-pyrazol-3-amine (CAS 1343940-39-5)
- Methyl 4-amino-5,6,7,8-tetrahydronaphthalene-1-carboxylate (CAS 444913-37-5)
- 4,4'-((Oxybis(ethane-2,1-diyl))bis(oxy))dianiline (CAS 6954-41-2)
- 1-(3-Chlorophenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264040-36-9)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
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