Compound Q&A
What are the physical and chemical properties of 2,7-Naphthalenedisulfonic acid,4,5-dihydroxy-3-[(2-hydroxy-5-sulfophenyl)azo]-, trisodium salt (CAS: 3270-25-5)?
Answer
![2,7-Naphthalenedisulfonic acid,4,5-dihydroxy-3-[(2-hydroxy-5-sulfophenyl)azo]-, trisodium salt](https://static.chemtradehub.com/structs/327/3270-25-5-1cda.webp "2,7-Naphthalenedisulfonic acid,4,5-dihydroxy-3-[(2-hydroxy-5-sulfophenyl)azo]-, trisodium salt")
The compound is a trisodium salt of a dianionic dye, with a molecular weight of approximately 713.3 g/mol. It has a crystalline form and is soluble in water, with a solubility of about 20 g/L at 25°C. It is a strong acid and exhibits high reactivity towards bases and certain organic compounds. It is often used in analytical chemistry for its unique spectral properties.
About
CAS No
3270-25-5
English Name
2,7-Naphthalenedisulfonic acid,4,5-dihydroxy-3-[(2-hydroxy-5-sulfophenyl)azo]-, trisodium salt
Molecular Formula
C16H9N2Na3O12S3
Molecular Weight
586.4 g/mol
SMILES
C1=CC(=C(C=C1S(=O)(=O)[O-])N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])O)O)O.[Na+].[Na+].[Na+]
InChIKey
XHCCWBJFZUXJBV-UHFFFAOYSA-K
Last Updated: 2025-09-13 09:53
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