3-Thiazolidineethanesulfonic acid, 5-(2-(1-ethyl-2-pyrrolidinylidene)ethylidene)-4-oxo-2-thioxo- 34282-85-4 5-((1-Ethylpyrrolidin-2-ylidene)ethylidene)-4-oxo-2-thioxothiazolidin-3-ethanesulphonic acid EINECS 251-914-3