Isonicotinamide
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| verifiedrevid = 416695175
| ImageFile = Isonicotinamide.png
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| PIN = Pyridine-4-carboxamide
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|Section1={{Chembox Identifiers
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| CASNo_Ref = {{cascite|correct|??}}
| CASNo = 1453-82-3
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 4H3BH6YX9Q
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| PubChem = 15074
| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}
| ChemSpiderID = 14346
| SMILES = c1cnccc1C(=O)N
| InChI = 1/C6H6N2O/c7-6(9)5-1-3-8-4-2-5/h1-4H,(H2,7,9)
| InChIKey = VFQXVTODMYMSMJ-UHFFFAOYAE
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| StdInChI = 1S/C6H6N2O/c7-6(9)5-1-3-8-4-2-5/h1-4H,(H2,7,9)
| StdInChIKey_Ref = {{stdinchicite|changed|chemspider}}
| StdInChIKey = VFQXVTODMYMSMJ-UHFFFAOYSA-N
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| ChEBI = 6031
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|Section2={{Chembox Properties
| C=6 | H=6 | N=2 | O=1
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| MeltingPt = 155–157 °C
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|Section4={{Chembox Thermochemistry
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|Section5={{Chembox Pharmacology
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|Section6={{Chembox Explosive
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|Section8={{Chembox Related
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Isonicotinamide (pyridine-4-carboxamide) is the amide form of isonicotinic acid. It is an isomer of nicotinamide, which has the carboxamide group in the 3-position.{{Cite web|last=PubChem|title=Isonicotinamide|url=https://pubchem.ncbi.nlm.nih.gov/compound/15074|access-date=2020-07-25|website=pubchem.ncbi.nlm.nih.gov|language=en}}
It is soluble in water (191 g/L), and is also soluble in ethanol, DMSO, methanol, chloroform, chloroform/methanol mixtures, and dioxane (10 mg/L). This compound is used for material synthesis.{{Cite web|title=Isonicotinamide {{!}} C6H6N2O {{!}} ChemSpider|url=http://www.chemspider.com/Chemical-Structure.14346.html|access-date=2020-07-25|website=www.chemspider.com}}
Compounds in which the amide nitrogen is connected to another, and then doubly-bonded, are called isonicotinoylhydrazones.{{Cite web|title=isonicotinamide (CHEBI:6031)|url=https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:6031|access-date=2020-07-25|website=www.ebi.ac.uk}}