primary amide organosulfur compound sulfonamide http://purl.bioontology.org/ontology/MESH/D013449 http://purl.bioontology.org/ontology/SNOMEDCT/387406002 http://purl.obolibrary.org/obo/CHEBI_35358 https://en.wikipedia.org/wiki/Category:Sulfonamides https://en.wikipedia.org/wiki/Sulfonamide https://www.wikidata.org/wiki/Q3208529 A group of compounds that contain the structure SO2NH2. An amide of a sulfonic acid RS(=O)2NR'2. G04BE03 sulfonamides