To provide: a carboxamide derivative having reduced content of amide ester; a method for producing thereof; and a detergent composition containing the carboxamide derivative and having excellent low-temperature stability. One method for producing a carboxamide derivative is to react carboxamide, produced with a manufacturing method of carboxamide including 0.02% by weight to 0.18% by weight of amide ester, with hydrogen peroxide, wherein the method includes a carboxamide synthesis process to synthesize carboxamide by reacting diamine with fatty acid ester at a molar rate of 1.20 to 1.60. Another method for producing a carboxamide derivative is to react the carboxamide with monohaloalkylcarboxylic acid or a salt thereof. A carboxamide derivative is produced by the method for producing a carboxamide derivative. A detergent composition includes the carboxamide derivative. The carboxamide derivative is preferably amidoamine oxide or amide betaine.
                            提供一种具有减少酰胺酯含量的羧酰胺衍
生物;一种生产该衍
生物的方法;以及含有该羧酰胺衍
生物并具有优异低温稳定性的洗涤剂组合物。一种生产羧酰胺衍
生物的方法是将羧酰胺(由含有0.02重量%至0.18重量%酰胺酯的羧酰胺制造方法制备而成)与
过氧化氢反应,其中该方法包括羧酰胺合成过程,通过将二胺与
脂肪酸酯以摩尔比1.20至1.60反应合成羧酰胺。另一种生产羧酰胺衍
生物的方法是将羧酰胺与单卤代烷基
羧酸或其盐反应。通过生产羧酰胺衍
生物的方法生产羧酰胺衍
生物。洗涤剂组合物包括羧酰胺衍
生物。该羧酰胺衍
生物最好是酰胺胺氧化物或酰胺
甜菜碱。