2,7-Dihydroxynaphthalene-3,6-disulphonate CAS 23894-07-7
| CAS No. | 23894-07-7 |
| Molecular Formula | C10H8O8S2 |
| Molecular Weight | 320.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
2,7-Dihydroxynaphthalene-3,6-disulphonate (CAS 23894-07-7), molecular formula C10H8O8S2 and molecular weight 320.30 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2,7-Dihydroxynaphthalene-3,6-disulphonate (C10H8O8S2) is characterized by a carbohydrate-derived structure, a sulfone group. 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).
As a certified reference material (CRM), 2,7-Dihydroxynaphthalene-3,6-disulphonate 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 | C10H8O8S2 |
| Molecular Weight | 320.30 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.) | 1963 |
| Sulfur Atoms | 2 |
Related Dihydroxynaphthalene Standards
- 2,5-Dihydroxynaphthalene-1,6-dicarboxylic acid (CAS 154030-54-3)
- 1,5-Dihydroxynaphthalene-2,6-dicarboxylic acid (CAS 25543-68-4)
- 2,3-Dihydroxynaphthalene-6-sulfonicacid (CAS 92-27-3)
- 2,3-Dihydroxynaphthalene-1,4-dicarbaldehyde (CAS 103860-60-2)
- 2,5-Dihydroxynaphthalene-1,6-dicarbaldehyde (CAS 111258-07-2)
- 1,5-Dihydroxynaphthalene-2,6-dicarbaldehyde (CAS 176443-00-8)
- 1,8-Dihydroxynaphthalene-2,7-dicarbaldehyde (CAS 688753-79-9)
- 2,6-Dihydroxynaphthalene-1,5-dicarbaldehyde (CAS 7235-47-4)
Recommended Standards
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