Acid Red 13

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| ImageFile = AcidRed13revd.png

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|Section1={{Chembox Identifiers

| CASNo = 2302-96-7

| PubChem = 9570106

| EC_number = 218-958-5

| UNII = 5926AP228X

| InChI=1S/C20H14N2O7S2.2Na/c23-18-9-5-12-11-13(30(24,25)26)6-7-14(12)20(18)22-21-17-8-10-19(31(27,28)29)16-4-2-1-3-15(16)17;;/h1-11,21H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b22-20-;;

| InChIKey = XYTVLRKJXNXOOI-CAPIVQQTSA-L

| SMILES = C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])NN=C3C4=C(C=CC3=O)C=C(C=C4)S(=O)(=O)[O-].[Na+].[Na+] }}

|Section2={{Chembox Properties

| C=20|H=12|N=2|Na=2|O=7|S=2

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| Appearance = red solid

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|Section3={{Chembox Hazards

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Acid Red 13 is an azo dye.{{cite encyclopedia|author1=Klaus Hunger|author2=Peter Mischke|author3=Wolfgang Rieper|author4=Roderich Raue|author5=Klaus Kunde|author6=Aloys Engel|title=Azo Dyes|encyclopedia=Ullmann’s Encyclopedia of Industrial Chemistry|year=2005|publisher=Wiley-VCH|place=Weinheim|doi=10.1002/14356007.a03_245|isbn=3527306730 }}. It is produced as a sodium salt. Solid samples appear dark red.