1. Primary Information
| English name: | Naphthol Yellow S |
| CAS No.: | 846-70-8 |
| Molecular formula: | C10H4N2NA2O8S |
| Molecular weight: | 358.19 g/mol |
| SMILES: | C1=CC2=C(C=C1S(=O)(=O)[O-])C(=C(C=C2[N+](=O)[O-])[N+](=O)[O-])[O-].[Na+].[Na+] |
| Structural class: | |
| Other identifiers: |
2,4-dinitro-1-naphthol-7-sulfonic acid disodium salt naphthol yellow naphthol yellow S naphthol yellow, aluminum salt (3:2) naphthol yellow, barium salt (1:1) |
2. Suppliers & Pricing
| Supplier | Pack size | Purity | Price (CNY) | Storage conditions | Lead time | Notes |
| Kehua Intelligence | 250mg | HPLC≥98% | 256 | 2-8℃ | in stock | - |
| Kehua Intelligence | 5g | 98% | 144 | 2-8℃ | in stock | - |
| Kehua Intelligence | 25g | 98% | 680 | 2-8℃ | in stock | - |
| Kehua Intelligence | 100g | 98% | 2560 | 2-8℃ | in stock | - |
3. Structures
3.1 2D structure
3.2 3D structure
4. International Nomenclature & Identifiers
4.1 IUPAC Name
disodium;5,7-dinitro-8-oxidonaphthalene-2-sulfonate
4.2 InChI
InChI=1S/C10H6N2O8S.2Na/c13-10-7-3-5(21(18,19)20)1-2-6(7)8(11(14)15)4-9(10)12(16)17;;/h1-4,13H,(H,18,19,20);;/q;2*+1/p-2
4.3 InChIKey
CTIQLGJVGNGFEW-UHFFFAOYSA-L
4.4 Canonical SMILES
C1=CC2=C(C=C1S(=O)(=O)[O-])C(=C(C=C2[N+](=O)[O-])[N+](=O)[O-])[O-].[Na+].[Na+]
4.5 Isomeric SMILES
-