This compound is a disodium salt of a bis-azo dye, characterized by two sulfonate groups and multiple aromatic rings. It is primarily used as a direct dye, meaning it can be applied directly to substrates such as cotton without a mordant.
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CAS 1937-35-5
Direct Black 38
direct dye for textiles
Naphthol Green B
histological dye for collagen staining
6-Carboxy-X-rhodamine
fluorescent dye for DNA labeling
Sodium 2-amino-5-sulfonaphthalene-1-sulfonate
dye intermediate
disodium;6-amino-5-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]-4-hydroxynaphthalene-2-sulfonate
NDHOYLRUTRKFBM-UHFFFAOYSA-L
C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C=CC6=CC(=CC(=C65)O)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]