1,3-Thiazolidine-2,4-dione2,4-Thiazolidinedione2,4-噻唑烷二酮thiazolidine-2,4-dione2,4-Thiazolidinedione1,3-Thiazolane-2,4-dione1,3-Thiazolidine-2,4-dione 98%Thiazolidine-2,4-dione2,4(3H,5H)-thiazoledione1,3-thiazolidine-2,4-dione2,4-thiazolidinedione2,4-dioxothiazolidine