1H-Indole-5-sulfonic acid, 2-phenyl-3-[2-[2-(phenylsulfonyl)phenyl]diazenyl]-, sodium salt (1:1) CAS 90677-63-7
| CAS No. | 90677-63-7 |
| Molecular Formula | C26H18N3O5S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 539.56 g/mol gives 1H-Indole-5-sulfonic acid, 2-phenyl-3-[2-[2-(phenylsulfonyl)phenyl]diazenyl]-, sodium salt (1:1) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1H-Indole-5-sulfonic acid, 2-phenyl-3-[2-[2-(phenylsulfonyl)phenyl]diazenyl]-, sodium salt (1:1) (CAS 90677-63-7) is a high-purity analytical reference standard with the molecular formula C26H18N3O5S2Na and a molecular weight of 539.56 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 1H-Indole-5-sulfonic acid, 2-phenyl-3-[2-[2-(phenylsulfonyl)phenyl]diazenyl]-, sodium salt (1:1) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 539.56 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1H-Indole-5-sulfonic acid, 2-phenyl-3-[2-[2-(phenylsulfonyl)phenyl]diazenyl]-, sodium salt (1:1) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C26H18N3O5S2 Na |
| Molecular Weight | 539.56 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) | 19.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related H Standards
- 1H-Indole-2,4,6-tricarboxylic acid (CAS 1000341-50-3)
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