2,4-Thiazolidinedione, 5-methyl-3-(2-methyl-2-propenyl)-, 2-((3-methyl-4-oxo-2-thiazolidinylidene)hydrazone) 31209-24-2 5-Methyl-3-(2-methylallyl)-2-((3-methyl-4-oxo-2-thiazolidinylidene)hydrazono)-4-thiazolidinone GP 48989 GP-48989 NSC 299119