1. Primary Information
| English name: | Carmoisine |
| CAS No.: | 3567-69-9 |
| Molecular formula: | C20H12N2NA2O7S2 |
| Molecular weight: | 502.4 g/mol |
| SMILES: | C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N=NC3=C(C4=CC=CC=C4C(=C3)S(=O)(=O)[O-])O.[Na+].[Na+] |
| Structural class: | |
| Other identifiers: |
acid red 2C azo rubin S azo rubin S, disodium salt azorubine carmoisine |
2. Suppliers & Pricing
| Supplier | Pack size | Purity | Price (CNY) | Storage conditions | Lead time | Notes |
| Kehua Intelligence | 20mg | HPLC≥98% | 192 | 2-8℃ | in stock | - |
| Kehua Intelligence | 25g | Dye content,50% | 115 | 2-8℃ | in stock | - |
| Kehua Intelligence | 100g | Dye content,50% | 275 | 2-8℃ | in stock | - |
| Kehua Intelligence | 20mg | HPLC≥98% | 238 | 2-8℃ | in stock | - |
3. Structures
3.1 2D structure
3.2 3D structure
4. International Nomenclature & Identifiers
4.1 IUPAC Name
disodium;4-hydroxy-3-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate
4.2 InChI
InChI=1S/C20H14N2O7S2.2Na/c23-20-15-8-4-3-7-14(15)19(31(27,28)29)11-17(20)22-21-16-9-10-18(30(24,25)26)13-6-2-1-5-12(13)16;;/h1-11,23H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2
4.3 InChIKey
YSVBPNGJESBVRM-UHFFFAOYSA-L
4.4 Canonical SMILES
C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N=NC3=C(C4=CC=CC=C4C(=C3)S(=O)(=O)[O-])O.[Na+].[Na+]
4.5 Isomeric SMILES
-