29120-26-1

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29120-26-1 Structure

Identification	Back Directory
[Name] HydroxyNaphtholBlue
[CAS] 29120-26-1
[Synonyms] hydroxynaphthol blue, free acid 1-(2-Naphtholazo-3,6-disulfonic acid)-2-naphthol-4-sulfonic acid 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2-hydroxy-4- sulfo-1-naphthalenyl)azo]- 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]-
[Molecular Formula] C20H14N2O11S3
[MOL File] 29120-26-1.mol
[Molecular Weight] 554.53

Chemical Properties	Back Directory
[density ] 1.86±0.1 g/cm3(Predicted)
[pka] -0.68±0.40(Predicted)
[EPA Substance Registry System] 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]- (29120-26-1)

Hazard Information	Back Directory
[Description] 1-(2-Hydroxy-4-sulfonaphthylazo)-2-naphthol-3,6-disulfonic acid is commonly used as a textile dye due to its vibrant color and staining properties. The compound consists of a naphthol ring, diazo group, and sulfonic acid groups which are responsible for its solubility in water.
[Uses] Hydroxy Naphthol Blue Sodium Salt is a sodium salt of Hydroxy Naphthol Blue; a calcium ??indicator azo-??dye.

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