165660-27-5

Basic information

• Product Name: HYDROXY NAPHTHOL BLUE
• Synonyms: Hydroxy naphthol blue disodiuM;2,7-Naphthalenedisulfonicacid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt(1:2);Hydroxy Naphthol Blue, In NaCl;Hydroxy naphthol blue disodium salt, For ACS analysis;HYDROXY NAPHTHOL BLUE;HYDROXY NAPHTHOL BLUE DISODIUM SALT;2,2'-DIHYDROXY-1,1'-AZONAPHTHALENE-3',4,6'-TRISULFONIC ACID DISODIUM SALT;1-(2-NAPHTHOLAZO-3,6-DISULFONIC ACID)-2-NAPHTHOL-4-SULFONIC ACID DISODIUM SALT
• CAS NO: 165660-27-5
• Molecular Formula: C20H12N2Na2O11S3
• Molecular Weight: 598.49
• Product Categories: G-H-I;Stains and Dyes;Stains&Dyes, A to
• Mol File: 165660-27-5.mol
• Article Data: 0

Chemical Properties

• Melting Point: 274°C
• Appearance: Small dark blue to black/Small Powder
• Storage Temp.: Store at room temperature.
• CAS DataBase Reference: HYDROXY NAPHTHOL BLUE(CAS DataBase Reference)
• NIST Chemistry Reference: HYDROXY NAPHTHOL BLUE(165660-27-5)
• EPA Substance Registry System: HYDROXY NAPHTHOL BLUE(165660-27-5)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38-36
• Safety Statements: 24/25-36-26
• WGK Germany: 3
• Hazardous Substances Data: 165660-27-5(Hazardous Substances Data)

Usage

Description

Hydroxy Naphthol Blue is a synthetic dye that exhibits blue to purple crystals or crystalline powder. It is known for its use as a calcium indicator, with a maximum absorption wavelength (λmax) of 650 nm.

Uses

Used in Research and Laboratory Applications:
Hydroxy Naphthol Blue is used as a calcium indicator for detecting and measuring calcium levels in various biological samples. Its ability to bind with calcium ions and change color provides a visual and quantitative assessment of calcium concentrations.
Used in Pharmaceutical Industry:
Hydroxy Naphthol Blue is used as a reagent in the development and manufacturing of pharmaceutical products. Its unique properties allow it to be incorporated into formulations for specific applications, such as in the detection and monitoring of calcium levels in the body.
Used in Analytical Chemistry:
Hydroxy Naphthol Blue is employed as an analytical tool in various chemical analyses. Its characteristic color change upon binding with calcium ions makes it a valuable component in colorimetric assays and other analytical techniques.
Used in Dyes and Metabolites:
Hydroxy Naphthol Blue is utilized in the production of dyes and metabolites due to its distinct color and chemical properties. Its versatility as a synthetic dye makes it suitable for a range of applications, including in the textile, cosmetic, and food industries.

InChI:InChI=1/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);;/q;2*+1/p-2/b22-21+;;/rC20H12N2Na2O11S3/c23-34-37(30,31)11-5-6-12-10(7-11)8-17(38(32,33)35-24)20(26)19(12)22-21-18-14-4-2-1-3-13(14)16(9-15(18)25)36(27,28)29/h1-9,25-26H,(H,27,28,29)/b22-21+