4-Pyridinecarboxamide, N-(5-((3-hydroxyphenyl)methylene)-4-oxo-2-thioxo-3-thiazolidinyl)- 72732-38-8 N-(5-((3-Hydroxyphenyl)methylene)-4-oxo-2-thioxo-3-thiazolidinyl)-4-pyridinecarboxamide