DHICA

{{Chembox

| ImageFile = 5,6-Dihydroxyindol-2-carbonsäure_korr.svg

| ImageSize = 200px

| PIN = 5,6-Dihydroxy-1H-indole-2-carboxylic acid

| OtherNames =

|Section1={{Chembox Identifiers

| CASNo = 4790-08-3

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

| UNII = S6M6LZR326

| PubChem = 119405

| SMILES = C1=C2C=C(NC2=CC(=C1O)O)C(=O)O

| InChI = 1/C9H7NO4/c11-7-2-4-1-6(9(13)14)10-5(4)3-8(7)12/h1-3,10-12H,(H,13,14)

| ChemSpiderID = 106648

| InChIKey = YFTGOBNOJKXZJC-UHFFFAOYAX

| StdInChI = 1S/C9H7NO4/c11-7-2-4-1-6(9(13)14)10-5(4)3-8(7)12/h1-3,10-12H,(H,13,14)

| StdInChIKey = YFTGOBNOJKXZJC-UHFFFAOYSA-N

| MeSHName = 5,6-dihydroxy-2-indolylcarboxylic acid

}}

|Section2={{Chembox Properties

| C=9|H=7|N=1|O=4

| Appearance =

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|Section3={{Chembox Hazards

| MainHazards =

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DHICA (5,6-dihydroxyindole-2-carboxylic acid) is an intermediate in the biosynthesis of melanin.{{cite journal | author = Pawelek JM | title = After dopachrome? | journal = Pigment Cell Res. | volume = 4 | issue = 2 | pages = 53–62 |date=March 1991 | pmid = 1946209 | doi = 10.1111/j.1600-0749.1991.tb00315.x}} Tautomerization of DHICA forms dopachrome.