17716-41-5

Usage

Uses

Used in Textile Industry:
Acid Orange 7 is used as a dye in the textile industry for coloring fabrics. Its water solubility and intense color make it a popular choice for dyeing processes.
Used in Leather Industry:
In the leather industry, Acid Orange 7 serves as a dye for coloring leather products. Its ability to provide a long-lasting and vibrant color is highly valued in this sector.
Used in Paper Industry:
Acid Orange 7 is utilized as a dye in the paper industry to impart color to paper products. Its colorfastness and ease of application contribute to its widespread use in this field.
Used in Cosmetic Industry:
In the cosmetic industry, Acid Orange 7 is used as a colorant in various products such as hair dyes, makeup, and nail polishes. Its ability to provide a wide range of shades and its compatibility with different formulations make it a preferred choice.
Used in Laboratory Applications:
Acid Orange 7 is used as a pH indicator in laboratory settings. Its color change properties in response to different pH levels make it a useful tool for monitoring and measuring pH in various experiments.
Used in Analytical Chemistry:
In analytical chemistry, Acid Orange 7 is employed as a reagent for the detection and analysis of certain metal ions. Its ability to form complexes with specific metals aids in their identification and quantification.
Used in Biological Staining:
Acid Orange 7 is used as a biological stain in microscopy and histology to color and differentiate cellular structures, facilitating the study of tissue morphology and cell types.

InChI:InChI=1/C16H13N3O10S3.3Na/c17-12-7-11(31(24,25)26)5-8-6-13(32(27,28)29)15(16(20)14(8)12)19-18-9-1-3-10(4-2-9)30(21,22)23;;;/h1-7,18H,17H2,(H,21,22,23)(H,24,25,26)(H,27,28,29);;;/q;3*+1/p-3/b19-15-;;;

Upstream product

• 5460-09-3 1-amino-8-hydroxy-naphthalene-3,6-disulphonic acid monosodium salt 
• 90-20-0 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid 
• 121-57-3 4-aminobenzene sulfonic acid 

Relevant academic research and scientific papers

A facile channel for D-glucose detection in aqueous solution

Three facile ensembles for sensing D-glucose are designed and constructed. The ensembles are comprised of fluorescent dye (NAHBDS) and boronic acid substituted viologens (BBVs) quenchers/receptors. The sensing processes of three ensembles (NAHBDS/o-BBV, NAHBDS/m-BBV and NAHBDS/p-BBV) to D-glucose were determined by fluorescence spectra at pH 7.4 buffer solution. The results show that NAHBDS/o-BBV and NAHBDS/m-BBV ensembles embody higher sensitivity for D-glucose with reversible "on-off" fluorescence response. More importantly, the recovery of relative intensity has good linear relation to low concentration of D-glucose. The action between the ensemble with D-glucose is dynamically reversible equilibrium process. The research results provide a new mode to design highly selective probe.

A method for continuously preparing azo dye in micro-reactors

The invention discloses a method for continuously preparing azo dye in micro-reactors in the field of dye synthesis. The azo dye is prepared by firstly subjecting a sodium nitrite solution, an aromatic primary amine and an inorganic acid to a diazotization reaction at room temperature in a first micro-reactor to generate an aromatic primary amine diazonium salt; and then subjecting the aromatic primary amine diazonium salt and a coupling component to a coupling reaction in a second micro-reactor to generate the azo dye. Continuous preparation of the azo dye is achieved by utilizing the micro-reactors, a process is simple, a reaction period is short, and a reaction process can be easily monitored and controlled. Addition of an excessive amount of the sodium nitrite and the coupling agent to increase the reaction speed is not required so that raw materials are saved and the method is environmentally friendly. Reaction liquid in the micro-reactors achieves high-speed collision mixing, a uniform reaction environment is formed immediately, the reaction efficiency is high, and the yield and quality of a reaction product are greatly improved.

Spectrophotometric Determination of Aromatic Amines by the Diazotization-Coupling Technique with 8-Amino-1-hydroxynaphthalene-3,6-disulfonic Acid and N-(1-Naphthyl)ethylenediamine as the Coupling Agents

A comprehensive study is made of the application of the diazotization-coupling spectrophotometric technique to the determination of diverse aromatic amines, using H-acid (8-amino-1-hydroxynaphthalene-3,6-disulfonic acid) and N-(1-naphthyl)ethylenediamine (also called N-(1-naphthalenyl)-1,2-ethanediamine or N-na) as the coupling agents.The methods were tested successfully on halogenate anilines, 2,4-dichloroaniline, nitroanilines, methylanilines, aminobenzoic acids, aminobenzenesulfonic acids, sulfanilamide, and certain other substituted anilines.The methods are not rec ommended for phenylenediamines and aminophenols, which produce little or no color.The aromatic amines containing negative groups tend to couple and produce colors more readily than aromatic amines not containing such groups.The amount of reagent and time required for full color development is less for aromatic amines containing negative groups, specially for the N-na method.Both methods are about equal in accuracy but the N-na mathod is on the average about 1.6 times more sensitive than the H-acid method.