6222-56-6

Basic information

• Product Name: disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate
• Synonyms: disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate;Acid brown 88 (C.I. 17595);4-Hydroxy-6-(phenylamino)-3-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid disodium salt;C.I.17595;C.I.Acid Brown 88
• CAS NO: 6222-56-6
• Molecular Formula: C22H15N3Na2O7S2
• Molecular Weight: 543.47994
• EINECS: 228-305-6
• Mol File: 6222-56-6.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate(CAS DataBase Reference)
• NIST Chemistry Reference: disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate(6222-56-6)
• EPA Substance Registry System: disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate(6222-56-6)

Safety Data

• Hazardous Substances Data: 6222-56-6(Hazardous Substances Data)

Usage

Description

Disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate is an organic compound characterized by its dark red to light brown color. It is soluble in water and slightly soluble in ethanol, displaying a red-brown hue in very small amounts. When treated with strong sulfuric acid, the compound turns red, and upon dilution, it exhibits an orange-brown color. In an aqueous solution, the addition of strong hydrochloric acid results in a brown color, while the introduction of a concentrated sodium hydroxide solution yields a red wine hue.

Uses

Used in Dye Industry:
Disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate is used as a dyestuff for various applications due to its color-changing properties when interacting with different chemicals. Its ability to produce distinct colors under specific conditions makes it a valuable compound in the dye industry for creating a range of hues.
Used in Analytical Chemistry:
In the field of analytical chemistry, disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate can be employed as an indicator or reagent for detecting the presence of specific ions or compounds. Its color-changing behavior in response to various chemical treatments allows for the identification and quantification of target substances in a sample.
Used in Research and Development:
disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate's unique properties and reactivity make it a valuable tool in research and development, particularly in the fields of organic chemistry and material science. Scientists can utilize disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate to study chemical reactions, develop new materials, or create novel compounds with specific properties.
Used in Pharmaceutical Industry:
Although not explicitly mentioned in the provided materials, the compound's interaction with various chemicals and its color-changing properties could potentially be harnessed in the pharmaceutical industry for the development of diagnostic tools or as a component in the synthesis of new drugs. Further research and development would be required to explore these possibilities.

Preparation

4-Aminobenzenesulfonic acid?diazo, in alkaline conditions and 4-Hydroxy-6-(phenylamino)naphthalene-2-sulfonic acid coupling.

InChI:InChI=1/C22H17N3O7S2.2Na/c26-22-19-13-17(23-15-4-2-1-3-5-15)7-6-14(19)12-20(34(30,31)32)21(22)25-24-16-8-10-18(11-9-16)33(27,28)29;;/h1-13,23-24H,(H,27,28,29)(H,30,31,32);;/q;2*+1/p-2/b25-21-;;