63250-48-6 Acetic acid, (3-ethyl-4-oxo-5-(1-piperidinyl)-2-thiazolidinylidene)-, ethyl ester, (Z)- EINECS 264-044-4 Ethyl (Z)-(3-ethyl-4-oxo-5-piperidin-1-ylthiazolidin-2-ylidene)acetate Ethyl (Z)-(3-ethyl-4-oxo-5-piperidinothiazolidin-2-ylidene)acetate Piprozoline Z-(3-Aethyl-4-oxo-5-piperidino-thiazolidin-2-yliden)-essigsaure-aethylester [German] cis-2-(3-Ethyl-4-oxo-5-piperidino-2-thiazolidinylidene)acetic acid delta(sup 2,alpha)-Thiazolidineacetic acid, 3-ethyl-4-oxo-5-piperidino-, ethyl ester, (Z)-