4-Hydroxynaphthalene-2,7-disulfonic acid CAS 578-85-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 578-85-8 |
| Molecular Formula | C10H8O7S2 |
| Molecular Weight | 304.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxynaphthalene-2,7-disulfonic acid (CAS 578-85-8) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C10H8O7S2. Molecular weight: 304.30 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C10H8O7S2 |
| Molecular Weight | 304.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 2 |
Related Hydroxynaphthalene Standards
- 8-Hydroxynaphthalene-1,6-disulfonic acid (CAS 117-43-1)
- 1-(1-Hydroxynaphthalene-2-carbonyl)pyrrolidine-2-carboxylic acid (CAS 1103247-90-0)
- 887-76-3 4,4'-Azo-3-hydroxynaphthalene-1-sulphonate 1-Naphthalenediazonium, 2-hydroxy-4-sulfo-, hydroxide, inner salt 1-Naphthalenediazonium, 2-hydroxy-4-sulfo-, inner salt EINECS 212-958-9 EC 212-958-9 (CAS 887-76-3)
- Sodium 5-hydroxynaphthalene-1-sulfonate (CAS 5419-77-2)
- 1-Hydroxynaphthalene-2-sulfonyl chloride (CAS 102879-07-2)
- 3-Hydroxynaphthalene-2,7-dicarboxylic acid (CAS 160592-73-4)
- 8-Hydroxynaphthalene-1-sulfonic acid (CAS 117-22-6)
- 7-Hydroxynaphthalene-1-sulfonic acid (CAS 132-57-0)
Recommended Standards
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- 4-(4-Formylpyrimidin-2-yl)phenyl benzoate (CAS 477870-75-0)
- 6-Bromo-4,8-dichlorobenzofuro[3,2-d]pyrimidine (CAS 2251053-04-8)
- 3-Benzyl-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (CAS 687580-04-7)
- n-Cyclopropylprop-2-ene-1-sulfonamide (CAS 1544781-59-0)
- 1-((4-Chlorophenyl)sulfonyl)-4-tosylpiperazine (CAS 459795-96-1)
- (2E)-3-(4-Chlorophenyl)-3-oxo-2-(2-phenylhydrazin-1-ylidene)propanal (CAS 337512-10-4)
- Rocuronium Impurity 32 (CAS CATO-C4X-124232)
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