4,4′-[[4-(4-Pyridinyl)phenyl]imino]bis[benzoic acid] CAS 1620819-71-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1620819-71-7 |
| Molecular Formula | C25H18N2O4 |
| Molecular Weight | 410.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4′-[[4-(4-Pyridinyl)phenyl]imino]bis[benzoic acid] (CAS 1620819-71-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C25H18N2O4. Molecular weight: 410.42 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C25H18N2O4 |
| Molecular Weight | 410.42 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 2 |
Related Pyridinyl Standards
- 1-(2-Pyridinyl)-4-{[5-(1,2,3-thiadiazol-4-yl)-2-thienyl]sulfonyl}piperazine (CAS 477867-54-2)
- 4-Methyl-5-[3-(2-pyridinyl)-6-(trifluoromethyl)thieno[3,2-b]pyridin-2-yl]-4H-1,2,4-triazole-3-thiol (CAS 551921-22-3)
- 68496-04-8 alpha-2-Pyridinyl-2,8-bis(trifluoromethyl)-4-quinolinemethanol 4-Quinolinemethanol, alpha-2-pyridinyl-2,8-bis(trifluoromethyl)- MQ-IS (CAS 68496-04-8)
- 4-[4-(2-Pyridinyl)-2-pyrimidinyl]phenyl 4-chlorobenzenecarboxylate (CAS 477857-41-3)
- Methyl 2-{[2-(2-pyridinyl)-6-(trifluoromethyl)-4-pyrimidinyl]oxy}benzenecarboxylate (CAS 338754-17-9)
- 3,6-Bis[2-(4-pyridinyl)ethenyl]-9H-carbazole (CAS 846042-18-0)
- 2-{3-[4-Methyl-2-(2-pyridinyl)-1,3-thiazol-5-yl]-3-oxo-1-phenylpropyl}malononitrile (CAS 477847-84-0)
- 2,6-Bis[2-(2-pyridinyl)-5-oxazolyl]pyridine (CAS 1224193-58-1)
Recommended Standards
- 4,6-Dimethoxy-b-methyl-3-phenoxy Ambrisentan (Mixture of Diastereomers) (CAS 159308-03-9)
- Darusentan (CAS 171714-84-4)
- (E)-Ceftibuten Dihydrate (CAS 1428117-81-0)
- 5-Amino-2-(pyrrolidin-1-yl)benzoic acid (CAS 16089-46-6)
- 2-(3-Methyl-benzyl)-piperidine hydrochloride (CAS 1171524-49-4)
- 1-((4-Bromophenyl)sulfonyl)-1H-benzo[d][1,2,3]triazole (CAS 139887-30-2)
- tributyl-[4-(methoxymethyl)-6-[(3R)-3-methoxytetrahydrofuran-3-yl]-2-pyridyl]stannane (CAS 2368946-80-7)
- 3-Bromo-5-hydroxybenzamide (CAS 1243362-78-8)
- (E)-6-(p-tolyl)imidazo[2,1-b]thiazole-5-carbaldehyde O-(4-chlorobenzyl) oxime (CAS 861212-98-8)
- Peptide 436 (CAS CATO-CPTD788436)
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 13829788188 / jacky.chen@cato-chem.com