CAS 165660-27-5
:Hydroxy naphthol blue
Description:
Hydroxy naphthol blue, identified by its CAS number 165660-27-5, is a synthetic organic compound commonly used as a pH indicator and a dye in various applications. It exhibits a distinct color change in response to pH variations, making it useful in titrations and other analytical chemistry processes. The compound is characterized by its solubility in water and organic solvents, which enhances its versatility in laboratory settings. Hydroxy naphthol blue typically appears as a blue or violet solution in alkaline conditions and transitions to a different hue in acidic environments. Its stability under a range of conditions allows for reliable performance in both educational and industrial applications. Additionally, it is important to handle this compound with care, as with many synthetic dyes, due to potential toxicity and environmental concerns. Overall, hydroxy naphthol blue serves as an effective tool for visualizing pH changes and is valuable in various fields, including biochemistry and environmental monitoring.
Formula:C20H14N2O11S3·2Na
InChI:InChI=1S/C20H14N2O11S3.2Na/c23-15-9-16(35(28,29)30)13-3-1-2-4-14(13)18(15)21-22-19-12-6-5-11(34(25,26)27)7-10(12)8-17(20(19)24)36(31,32)33;;/h1-9,23-24H,(H,25,26,27)(H,28,29,30)(H,31,32,33);;
InChI key:InChIKey=PPLGBYKWDBFHQY-UHFFFAOYSA-N
SMILES:N(=NC=1C2=C(C(S(=O)(=O)O)=CC1O)C=CC=C2)C=3C4=C(C=C(S(=O)(=O)O)C3O)C=C(S(=O)(=O)O)C=C4.[Na]
Synonyms:- 2,2-Dihydroxy-1,1-azonaphthalene-3,4,6-trisulfonic acid disodium salt
- 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-, disodium salt
- 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2)
- Disodium 3-hydroxy-4-(2-hydroxy-4-sulfonaphthalen-1-yl)diazenylnaphthalene-2,7-disulfonate
- Hydroxy naphthol blue
- Hydroxy naphthol blue disodium salt
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Found 6 products.
2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2)
CAS:Formula:C20H12N2Na2O11S3Color and Shape:SolidMolecular weight:598.4906Hydroxy Naphthol Blue Disodium Salt
CAS:Hydroxy Naphthol Blue Disodium SaltPurity:ACSMolecular weight:598.49g/molHydroxy naphthol blue disodium
CAS:Hydroxy naphthol blue disodium, an azo dye functioning as a metal indicator for calcium and a colorimetric reagent for alkaline earth metal ions (λmax = 650 nmFormula:C20H12N2Na2O11S3Color and Shape:SolidMolecular weight:598.49Hydroxy naphthol blue disodium salt
CAS:Formula:C20H12N2O11S3Na2Color and Shape:Dark blue powder or crystalsMolecular weight:598.49Hydroxy naphthol blue disodium
CAS:<p>Hydroxy naphtol blue is a synthetic azo dye, characterised for containing the functional group R N=N R. The hydroxy naphtol blue disodium and trisodium salt are used as indicators to determine the content of alkaline earth and lanthanides spectrophotometrically, showing at maximum a wavelength of ~ 650 nm (λmax = 647.6 nm). The best example of the use of hydroxy naphtol blue sodium salt is to determine the hardness of water by measuring the concentration of calcium and magnesium. At alkaline or basic pH, the hydroxy naphtol blue forms a pink/red complex with the metal ions and, after titration with EDTA, hydroxy naphtol blue is liberated, turning the solution blue which indicates the endpoint.</p>Formula:C20H14N2O11S3·2NaColor and Shape:PowderMolecular weight:600.51 g/molHydroxy Naphthol Blue Disodium Salt (Technical Grade)
CAS:Controlled Product<p>Applications Hydroxy Naphthol Blue Disodium Salt is a synthetic dye that has been used as a calcium indicator, which has a λmax = 650 nm. Dyes and metabolites.<br>References Newfield, O.E. 1967. Med. J. Aust. 1: 1257; Goto, M., et al. 2009. BioTechniques. 46: 167-172<br></p>Formula:C20H12N2O11S3·2NaColor and Shape:NeatMolecular weight:598.49062
