Sodium 4-amino-5-hydroxynaphthalene-2,7-disulfonate CAS 3963-80-2
| CAS No. | 3963-80-2 |
| Molecular Formula | C10H7NO7S2 |
| 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 340.28 g/mol gives Sodium 4-amino-5-hydroxynaphthalene-2,7-disulfonate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Sodium 4-amino-5-hydroxynaphthalene-2,7-disulfonate (CAS 3963-80-2), a certified reference material (molecular formula C10H7NO7S2Na, MW 340.28 g/mol) for analytical method development and quality control.
Sodium 4-amino-5-hydroxynaphthalene-2,7-disulfonate (C10H7NO7S2Na) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Sodium 4-amino-5-hydroxynaphthalene-2,7-disulfonate 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 | C10H7NO7S2 2*Na |
| Molecular Weight | 340.28 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 4’-Nitrobiphenyl-4-methanol (CAS 62037-99-4)
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- 1-(2-Methylphenyl)-3-(prop-2-en-1-yl)thiourea (CAS 1204-97-3)
- 2-Boc-2,8-diazaspiro[5.5]undecane (CAS 954240-14-3)
- 4-(Oxolan-3-yl)-1H-pyrazole (CAS 2097937-75-0)
- N-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)butan-1-amine (CAS 1256359-08-6)
- Buserelin EP Impurity E (CAS CATO-C4X-22125)
- tert-Butyl 2,7-diazaspiro[4.5]decane-7-carboxylate hydrochloride (CAS 1279856-08-4)
- Lasmiditan Impurity 50 (CAS CATO-C4X-247850)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
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