4H-Pyrido(1,2-a)pyrimidine-3-carboxylic acid, 6,7,8,9-tetrahydro-6-methyl-4-oxo-9-(phenylhydrazono)-, (S)- 6,(5)-Methyl-4-oxo-9-phenylhydrazono-6,7,8,9-tetrahydro-4H-pyrido(1,2-a)pyrimidine-3-carboxylic acid 70999-42-7 Chinoin 1045 Ucb L140