5-(4-Carboxyphenyl)-2-hydroxyisonicotinic acid CAS 1261998-76-8
| CAS No. | 1261998-76-8 |
| Molecular Formula | C13H9NO5 |
| Molecular Weight | 259.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-(4-Carboxyphenyl)-2-hydroxyisonicotinic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 5-(4-Carboxyphenyl)-2-hydroxyisonicotinic acid (CAS 1261998-76-8), a certified reference material (molecular formula C13H9NO5, MW 259.21 g/mol) for analytical method development and quality control.
Based on its molecular formula C13H9NO5, 5-(4-Carboxyphenyl)-2-hydroxyisonicotinic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 259.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H9NO5 |
| Molecular Weight | 259.21 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Carboxyphenyl Standards
- 2-(4-Carboxyphenyl)-4-fluorobenzoic acid (CAS 1261931-01-4)
- 2-(2-Carboxyphenyl)-5-fluorobenzoic acid (CAS 1355247-36-7)
- 3-(3-Carboxyphenyl)-2-fluorobenzoic acid (CAS 1381944-58-6)
- 1-(2-Carboxyphenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic acid (CAS 956990-21-9)
- 2-((4-Carboxyphenyl)amino)benzoic acid (CAS 17332-57-9)
- 2-((3-Carboxyphenyl)amino)benzoic acid (CAS 27693-67-0)
- 1-(4-Carboxyphenyl)-6-oxo-1,4,5,6-tetra-hydropyridazine-3-carboxylic acid 3247AF 920464-96-6 C12H10N2O5 (CAS 920464-96-6)
- 2-[(4-Carboxyphenyl)methyl]-4-thiazolecarboxylic Acid (CAS 1266962-78-0)
Recommended Standards
- 6-((2,4-Difluorophenyl)amino)-2-formylnicotinonitrile (CAS 1221271-90-4)
- 2-(S-Butylthiomethyl)-1-bromobenzene (CAS 1309978-21-9)
- Platinum(IV) sulfide (CAS 12038-21-0)
- (S)-2-Acetamido-3-(2,3-difluoro-4-hydroxyphenyl)propanoic acid (CAS 1313277-87-0)
- (2-Hydroxy-3,5-dimethylphenyl)(1-phenyl-1H-pyrazol-4-yl)methanone (CAS 93065-68-0)
- 3,4-Dimethyl-alpha-(trifluoromethyl)benzyl Alcohol (CAS 220675-92-3)
- 4-(Difluoromethyl)-5-(hydroxymethyl)-6-methoxypyridin-3-ol (CAS 1805998-94-0)
- 5,6-Difluorobenzo[d]thiazol-2(3H)-one (CAS 1188090-34-7)
- 3-{[5-methyl-3-(trifluoromethyl)-1h-pyrazol-1-yl]methyl}benzoic acid (CAS 1006348-88-4)
- 5-Methyl-3H-pyrazol-3-one (CAS 3206-39-1)
- 2-{[5-(4-methylphenyl)-1H-imidazol-2-yl]sulfanyl}acetic acid (CAS 1105192-49-1)
- trans-2-ethylcyclopentan-1-amine (CAS 80864-16-0)
- 2-Chloro-4-(cyclopropylmethoxy)phenol (CAS 860616-68-8)
- Neuropeptide S (rat) (CAS 412938-75-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com