2-(2-(Dimethylamino)-2-oxoethyl)-2,5,5-trimethyl-4-thiazolidinecarboxylic acid 4-Carboxy-2,5,5-trimethylthiazolidine-2-N,N-dimethylacetamide 4-Thiazolidinecarboxylic acid, 2-(2-(dimethylamino)-2-oxoethyl)-2,5,5-trimethyl- 85486-53-9