Disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate CAS 2347-72-0
| CAS No. | 2347-72-0 |
| Molecular Formula | C16H10N2O7S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate (C16H10N2O7S2Na) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing 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).
CATO supplies Disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate (CAS 2347-72-0), a certified reference material (molecular formula C16H10N2O7S2Na, MW 429.37 g/mol) for analytical method development and quality control.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C16H10N2O7S2 2*Na |
| Molecular Weight | 429.37 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Disodium Standards
- Disodium hydrogen phosphate dihydrate (CAS 10028-24-7)
- Disodium terephthalate (CAS 10028-70-3)
- Disodium Deuterium Phosphate (CAS 107632-22-4)
- Disodium;2-ethoxyethyl phosphate (CAS 1229236-93-4)
- DIsodium phenyl phosphate hydrate (CAS 1260375-37-8)
- Disodium 4-cyanoisothiazole-3,5-dithiolate (CAS 1314229-65-6)
- MLN-4760 disodium salt (CAS 1315337-39-3)
- MLN-4760 disodium salt tetrahydrate (CAS 1315337-40-6)
Recommended Standards
- 3-chloro-2-(trideuteriomethylamino)pyridine-4-thiol (CAS 2568911-04-4)
- 4-((3-Fluorobenzyl)oxy)piperidine hydrochloride (CAS 1185298-16-1)
- L-Glutamic acid gamma-(3-carboxy-4-nitroanilide) ammonium salt (CAS 63699-78-5)
- 2-Amino-3-(1,2,3,4-tetrahydronaphthalen-1-yl)propan-1-ol (CAS 1339343-28-0)
- (S)-N-(3,3,3-Trifluoro-2-hydroxypropyl)benzamide (CAS 1132667-00-5)
- N-(7-(2-phenylacetyl)-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)acetamide (CAS 886493-88-5)
- Ethyl 3-Bromo-5-chloroindole-1-carboxylate (CAS 1375064-65-5)
- 4-(trifluoromethyl)-1,3-dihydrobenzimidazol-2-one (CAS 2251-78-7)
- 4-(4-Ethoxy-2,5-dimethyl-phenyl)-4-hydroxy-butyric acid (CAS 879053-42-6)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com