171088-75-8 4-((4-Ethoxyphenyl)amino)-4-oxobutanoic acid compd. with 4,5-dihydro-2-thiazolamine (1:1) Butanoic acid, 4-((4-ethoxyphenyl)amino)-4-oxo-, compd. with 4,5-dihydro-2-thiazolamine (1:1)