(E)-3-((4-(phenylamino)naphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonic acid CAS 57322-42-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 57322-42-6 |
| Molecular Formula | C26H19N3O6S2 |
| Molecular Weight | 533.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-3-((4-(phenylamino)naphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonic acid (CAS 57322-42-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C26H19N3O6S2. Molecular weight: 533.58 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C26H19N3O6S2 |
| Molecular Weight | 533.58 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- 2-Amino-1-(4-chloro-2-fluorophenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1275402-33-9)
- 2-(2-((Benzyl(ethyl)amino)methyl)piperidin-1-yl)ethanol (CAS 1353982-06-5)
- 4-n-Dodecylcyclohexanecarboxylic acid (CAS 871325-02-9)
- N-mesitylacrylamide (CAS 104774-84-7)
- Terbutaline impurity 133 (CAS CATO-C4X-1183133)
- 1-([1,1'-Biphenyl]-4-yl)-2,2-dihydroxyethan-1-one (CAS 1145-04-6)
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