Disodium 3-hydroxy-4-(4-nitrophenyl)azonaphthalene-2,7-disulphonate CAS 7143-21-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 7143-21-7 |
| Molecular Formula | C16H9N3O9S2 2*Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order Disodium 3-hydroxy-4-(4-nitrophenyl)azonaphthalene-2,7-disulphonate (CAS 7143-21-7) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C16H9N3O9S2 2*Na. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C16H9N3O9S2 2*Na |
| Molecular Weight | 474.37 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Disodium Standards
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- Disodium Deuterium Phosphate (CAS 107632-22-4)
- Disodium;2-ethoxyethyl phosphate (CAS 1229236-93-4)
- DIsodium phenyl phosphate hydrate (CAS 1260375-37-8)
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- MLN-4760 disodium salt (CAS 1315337-39-3)
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Recommended Standards
- 4-Hydroxy-1-phenyl-1h-pyrazole-3-carbohydrazide (CAS 956781-13-8)
- H-4-Cyano-Phe-OH (CAS 167479-78-9)
- 3-(4-Chlorophenyl)-5-(furan-2-yl)-4,5-dihydro-1h-pyrazole-1-carbothioamide (CAS 686725-76-8)
- 2,7-Dichloro-9H-carbazole (CAS 102871-58-9)
- (3-(Hydroxymethyl)piperidin-1-yl)(4-methylthiazol-5-yl)methanone (CAS 1155632-04-4)
- (1S,2S)-2-methyl-4-oxocyclohexane-1-carboxylic acid (CAS 1931946-13-2)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com