| CAS No. | 1628065-30-4 |
| Molecular Formula | C44H28N6O4 |
| Molecular Weight | 704.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO supplies 4,4′-(10,20-Di-4-pyridinyl-21H,23H-porphine-5,15-diyl)bis[benzoic acid] (CAS 1628065-30-4), a certified reference material (molecular formula C44H28N6O4, MW 704.73 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 4,4′-(10,20-Di-4-pyridinyl-21H,23H-porphine-5,15-diyl)bis[benzoic acid] is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 704.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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.
| Molecular Formula | C44H28N6O4 |
| Molecular Weight | 704.73 g/mol |
| 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) | 34.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 6 |