Determine the necessary mass, volume, or concentration for preparing a solution.
Dye content ~60 % for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 12 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 488182594 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488182594 |
| Canonical Smiles | C1=CC=C2C(=C1)C=CC(=C2N=NC3=C(C=C(C=C3)N=NC4=CC=C(C=C4)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+] |
| IUPAC Name | disodium;2-[(2-hydroxynaphthalen-1-yl)diazenyl]-5-[(4-sulfonatophenyl)diazenyl]benzenesulfonate |
| InChIKey | VVAVKBBTPWYADW-UHFFFAOYSA-L |
| INCHI | 1S/C22H16N4O7S2.2Na/c27-20-12-5-14-3-1-2-4-18(14)22(20)26-25-19-11-8-16(13-21(19)35(31,32)33)24-23-15-6-9-17(10-7-15)34(28,29)30;;/h1-13,27H,(H,28,29,30)(H,31,32,33);;/q;2*+1/p-2 |
| Isomeric SMILES | C1=CC=C2C(=C1)C=CC(=C2N=NC3=C(C=C(C=C3)N=NC4=CC=C(C=C4)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+] |
| WGK Germany | 3 |
| Molecular Weight | 556.48 |
| Reaxy-Rn | 3883900 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3883900&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Azobenzenes |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Azobenzenes |
| Alternative Parents | Naphthalenes Benzenesulfonic acids and derivatives Benzenesulfonyl compounds 1-sulfo,2-unsubstituted aromatic compounds Phenoxides Sulfonyls Organosulfonic acids Azo compounds Propargyl-type 1,3-dipolar organic compounds Organopnictogen compounds Organooxygen compounds Organic sodium salts Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homopolycyclic compounds |
| Substituents | Azobenzene - Naphthalene - Benzenesulfonate - Arylsulfonic acid or derivatives - Benzenesulfonyl group - 1-sulfo,2-unsubstituted aromatic compound - Phenoxide - Monocyclic benzene moiety - Benzenoid - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - Azo compound - Organic alkali metal salt - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Organic sodium salt - Hydrocarbon derivative - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Organic oxide - Organopnictogen compound - Organic salt - Organic nitrogen compound - Organic oxygen compound - Aromatic homopolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as azobenzenes. These are organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to a benzene ring. |
| External Descriptors | organic sodium salt |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | May 19, 2026 | A121933 | |
| Certificate of Analysis | Oct 13, 2025 | A121933 | |
| Certificate of Analysis | Oct 13, 2025 | A121933 | |
| Certificate of Analysis | Jul 10, 2025 | A121933 | |
| Certificate of Analysis | Sep 04, 2024 | A121933 | |
| Certificate of Analysis | Jun 25, 2024 | A121933 | |
| Certificate of Analysis | Jul 07, 2023 | A121933 | |
| Certificate of Analysis | Sep 06, 2022 | A121933 | |
| Certificate of Analysis | Sep 06, 2022 | A121933 | |
| Certificate of Analysis | Sep 06, 2022 | A121933 | |
| Certificate of Analysis | Sep 06, 2022 | A121933 | |
| Certificate of Analysis | Sep 06, 2022 | A121933 | |
| Certificate of Analysis | Jun 17, 2022 | A121933 |
| Solubility | ethanol: 1 mg/mL H2O: >30 mg/mL |
|---|---|
| Flash Point(°F) | 572°F |
| Flash Point(°C) | 300℃ |
| Melt Point(°C) | 181-188°C |
| Molecular Weight | 556.500 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 11 |
| Rotatable Bond Count | 4 |
| Exact Mass | 556.01 Da |
| Monoisotopic Mass | 556.01 Da |
| Topological Polar Surface Area | 201.000 Ų |
| Heavy Atom Count | 37 |
| Formal Charge | 0 |
| Complexity | 958.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 3 |
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