2-Hydroxy-4-methoxybenzaldehyde

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| ImageFile = 2-Hydroxy-4-methoxybenzaldehyde.svg

| ImageSize = 150px

| ImageAlt = Chemical structure of 2-hydroxy-4-methoxybenzaldehyde

| PIN = 2-Hydroxy-4-methoxybenzaldehyde

| OtherNames = 4-Methoxysalicylaldehyde

|Section1={{Chembox Identifiers

| CASNo = 673-22-3

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

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

| UNII = 2N395P88LW

| PubChem = 69600

| SMILES = COC1=CC(=C(C=C1)C=O)O

| ChemSpiderID = 62803

| StdInChI = 1S/C8H8O3/c1-11-7-3-2-6(5-9)8(10)4-7/h2-5,10H,1H3

| StdInChIKey = WZUODJNEIXSNEU-UHFFFAOYSA-N

}}

|Section2={{Chembox Properties

| C=8 | H=8 | O=3

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|Section3={{Chembox Hazards

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2-Hydroxy-4-methoxybenzaldehyde is a chemical compound and an isomer of vanillin. Urolithin M7, one of the urolithins, has also been synthesized from 2-hydroxy-4-methoxybenzaldehyde using the inverse electron-demand Diels–Alder reaction.{{cite journal | doi = 10.1055/s-0030-1261203 | title = An Inverse Electron-Demand Diels-Alder-Based Total Synthesis of Urolithin M7 | year = 2011 | last1 = Bodwell | first1 = Graham | last2 = Pottie | first2 = Ian | last3 = Nandaluru | first3 = Penchal | journal = Synlett | volume = 2011 | issue = 15 | pages = 2245}}