| CAS No. | 63216-86-4 |
| Molecular Formula | C24H18N4O9S3 |
| Molecular Weight | 602.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 602.62 g/mol gives 2-(4-(4-Amino-2-sulfostyryl)-3-sulfophenyl)-2H-naphtho[1,2-d][1,2,3]triazole-5-sulfonic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(4-(4-Amino-2-sulfostyryl)-3-sulfophenyl)-2H-naphtho[1,2-d][1,2,3]triazole-5-sulfonic acid (CAS 63216-86-4), molecular formula C24H18N4O9S3 and molecular weight 602.62 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(4-(4-Amino-2-sulfostyryl)-3-sulfophenyl)-2H-naphtho[1,2-d][1,2,3]triazole-5-sulfonic acid (C24H18N4O9S3) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 602.62 g/mol, it falls into the high-molecular-weight range. 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 | C24H18N4O9S3 |
| Molecular Weight | 602.62 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 3 |