4-[(3-hydroxyphenyl)amino]-4-oxobut-2-enoic acid is a chemical compound registered under CAS number 28122-54-5, with the molecular formula C10H9NO4 and a molecular weight of about 207.18 g/mol. It is also known as 2-Butenoicacid, 4-[(3-hydroxyphenyl)amino]-4-oxo-, (Z)-; Maleanilic acid, 3'-hydroxy-(8CI); 3'-Hydroxymaleanilic acid. SixChem supplies 4-[(3-hydroxyphenyl)amino]-4-oxobut-2-enoic acid for laboratory research and bulk production; product code 350297. Send an inquiry for purity, packaging, price and lead time.