4-[6-(4-Carboxyphenyl)pyrazin-2-yl]benzoic acid CAS 623157-25-5
| CAS No. | 623157-25-5 |
| Molecular Formula | C18H12N2O4 |
| Molecular Weight | 320.30 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.
4-[6-(4-Carboxyphenyl)pyrazin-2-yl]benzoic acid (CAS 623157-25-5), molecular formula C18H12N2O4 and molecular weight 320.30 g/mol, is a CATO reference standard with documented purity and traceability.
4-[6-(4-Carboxyphenyl)pyrazin-2-yl]benzoic acid (C18H12N2O4) contains a flavonoid 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 4-[6-(4-Carboxyphenyl)pyrazin-2-yl]benzoic 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.
Physical & Chemical Properties
| Molecular Formula | C18H12N2O4 |
| Molecular Weight | 320.30 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Carboxyphenyl Standards
- 4,6-Di(4-carboxyphenyl)pyrimidine (CAS 609356-00-5)
- 2,5-Bis(4-carboxyphenyl)pyridine (CAS 1800425-09-5)
- 2-((4-Carboxyphenyl)sulfonamido)benzoic acid (CAS 327092-89-7)
- 3-(N-(4-carboxyphenyl)sulfamoyl)benzoic acid (CAS 328110-84-5)
- 3-[(2-carboxyphenyl)sulfamoyl]benzoic acid (CAS 328028-15-5)
- 6-(4-Carboxyphenyl)-3-hydroxy-2-methylquinoline-4-carboxylic acid (CAS 106077-37-6)
- 3-(4-Carboxyphenyl)-1,1,3-trimethylindane-5-carboxylic acid (CAS 3569-18-4)
- (4-Carboxyphenyl)diphenylphosphine 2129-31-9 4-(Diphenylphosphino)benzoic acid Diphenyl(p-carboxyphenyl) phosphine p-(Diphenylphosphino)benzoic acid (CAS 2129-31-9)
Recommended Standards
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- 5'-(N-Cyclopropyl)carboxamidoadenosine (CAS 50908-62-8)
- 3-[(3-Phenyl-1,2,4-oxadiazol-5-yl)methyl]-1,2,3,4-tetrahydroquinazoline-2,4-dione (CAS 892286-95-2)
- quinazoline-4-carbaldehyde (CAS 933747-26-3)
- 4-Chloro-6-methyl-2-(pyridin-3-yl)pyrimidine (CAS 83551-42-2)
- 3-Cyclopropoxy-N,N-dimethyl-2-(methylsulfonamido)isonicotinamide (CAS 1243371-00-7)
- (3aR,5R,6S,6aR)-5-[({[4-(Benzyloxy)phenyl]methyl}amino)methyl]-2,2-dimethyl-tetrahydro-2H-furo[2,3-d][1,3]dioxol-6-ol (CAS 1820574-24-0)
- 3-((3-Methoxypropyl)amino)quinoxalin-2(1H)-one (CAS 731815-56-8)
- 4-Bromobenzimidamide (CAS 22265-36-7)
- 1-(4-((6,7-Dimethoxy-3,4-dihydroisoquinolin-1-yl)methyl)phenyl)-3-(9H-fluoren-2-yl)urea (CAS 1022510-56-0)
- Sulbenicillin Impurity 3 (CAS CATO-C4X-23243)
- 5-[1-Methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl]thiophene-2-sulfonamide (CAS 630111-78-3)
- Peptide 438 (CAS CATO-CPTD788438)
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