Sodium 8-hydroxynaphthalene-1,6-disulfonate CAS 83732-80-3
| CAS No. | 83732-80-3 |
| Molecular Formula | C10H6O7S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Sodium 8-hydroxynaphthalene-1,6-disulfonate (CAS 83732-80-3), molecular formula C10H6O7S2Na and molecular weight 325.26 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Sodium 8-hydroxynaphthalene-1,6-disulfonate (C10H6O7S2Na) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C10H6O7S2 2*Na |
| Molecular Weight | 325.26 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.) | 1980 |
| Sulfur Atoms | 2 |
Related Sodium Standards
- 1-Hydroxynaphthalene-2-sulfonyl chloride (CAS 102879-07-2)
- 1-(1-Hydroxynaphthalene-2-carbonyl)pyrrolidine-2-carboxylic acid (CAS 1103247-90-0)
- 8-Hydroxynaphthalene-1-sulfonic acid (CAS 117-22-6)
- 8-Hydroxynaphthalene-1,6-disulfonic acid (CAS 117-43-1)
- 5-Hydroxynaphthalene-1-Sulfonic Acid (CAS 117-59-9)
- 7-Hydroxynaphthalene-1-sulfonic acid (CAS 132-57-0)
- Sodium 6-hydroxynaphthalene-2-Sulfonate (CAS 135-76-2)
- 7-Hydroxynaphthalene-1,3-disulfonic acid xpotassium salt (CAS 13846-08-7)
Recommended Standards
- 5-((3,4-Dichlorophenyl)amino)-5-oxopentanoic acid (CAS 157101-38-7)
- Methyl 1-ethyl-5-oxopyrrolidine-3-carboxylate (CAS 100911-29-3)
- (S)-2-Amino-3-(4-iodophenyl)propanenitrile hydrochloride (CAS 1159489-38-9)
- 3-Cyclopropoxy-4,5-bis(methylthio)pyridine (CAS 1243397-86-5)
- (41S,7aR,13aR,13bR)-2,3,41,6,7,7a,8,13,13a,13b-decahydro-1H,5H,10H-dipyrido[2,1-f:3',2',1'-ij][1,6]naphthyridin-10-one (CAS CATO-C3D-4800)
- 6-(3-Formylphenyl)nicotinonitrile (CAS 769972-01-2)
- 4-Propyl-1H-benzo[d]imidazol-5-amine (CAS 177843-33-3)
- 1-Phenyl-1,2-propanedione (CAS 579-07-7)
- n-(5-Bromo-2-methoxybenzyl)tetrahydro-2h-pyran-3-amine (CAS 1406095-35-9)
- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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