6-Amino-4-hydroxy-3-((4-(phenyldiazenyl)naphthalen-1-yl)diazenyl)naphthalene-2-sulfonic acid CAS 224790-31-2
| CAS No. | 224790-31-2 |
| Molecular Formula | C26H19N5O4S |
| Molecular Weight | 497.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 6-Amino-4-hydroxy-3-((4-(phenyldiazenyl)naphthalen-1-yl)diazenyl)naphthalene-2-sulfonic acid is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
6-Amino-4-hydroxy-3-((4-(phenyldiazenyl)naphthalen-1-yl)diazenyl)naphthalene-2-sulfonic acid (CAS 224790-31-2), molecular formula C26H19N5O4S and molecular weight 497.53 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6-Amino-4-hydroxy-3-((4-(phenyldiazenyl)naphthalen-1-yl)diazenyl)naphthalene-2-sulfonic acid (C26H19N5O4S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C26H19N5O4S |
| Molecular Weight | 497.53 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2021 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
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