4-Pyridinecarboxamide, N-(5-((2-nitrophenyl)methylene)-4-oxo-2-thioxo-3-thiazolidinyl)- 68711-00-2 N-(5-((2-Nitrophenyl)methylene)-4-oxo-2-thioxo-3-thiazolidinyl)-4-pyridinecarboxamide