Acid Blue 25

{{chembox

|Name=Acid Blue 25

|ImageFile=Acid Blue 25.svg

|ImageSize=200px

|PIN= Sodium 1-amino-4-anilino-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate

|OtherNames= 2-Anthraquinonesulfonic acid, Acid Blue 25

| Section1 = {{Chembox Identifiers

| CASNo= 6408-78-2

| CASNo_Ref = {{cascite|correct|CAS}}

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = S2E15W6FSN

| EINECS = 229-068-1

| PubChem = 23675622

| ChemSpiderID = 21462

| SMILES=C1=CC=C(C=C1)NC2=CC(=C(C3=C2C(=O)C4=CC=CC=C4C3=O)N)S(=O)(=O)[O-].[Na+]

| InChI = 1S/C20H14N2O5S.Na/c21-18-15(28(25,26)27)10-14(22-11-6-2-1-3-7-11)16-17(18)20(24)13-9-5-4-8-12(13)19(16)23;/h1-10,22H,21H2,(H,25,26,27);/q;+1/p-1

| InChIKey = LIKZXCROQGHXTI-UHFFFAOYSA-M

| StdInChI_Ref =

| StdInChI =

| StdInChIKey_Ref =

| StdInChIKey =

| ChEBI_Ref =

| ChEBI = 538892

}}

|Section2= {{Chembox Properties

| C=20|H=13|N=2|Na=1|O=5|S=1

| Appearance=

| Density=

| MeltingPt=

| BoilingPt=

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| Solvent=

}}}}

Acid Blue 25 (C₂₀H₁₃N₂NaO₅S) is an acid dye that is water-soluble and anionic and used for adsorption research.{{cite web |url=http://www.scbt.com/datasheet-214470-acid-blue-25.html |title=Acid Blue 25 (CAS 6408-78-2) |access-date=2014-03-11 |archive-url=https://web.archive.org/web/20140311094143/http://www.scbt.com/datasheet-214470-acid-blue-25.html |archive-date=2014-03-11 |url-status=dead }} The structure is an anthraquinone.{{cite web |url=http://www.worlddyevariety.com/acid-dyes/acid-blue-25.html |title=World dye variety}}