4,5-Dihydro-4-methyl-6-oxo-5-phenyl-6H-pyrazolo(4,5-c)isoselenazole 4,5-Pis 6H-Pyrazolo(4,3-c)isoselenazol-6-one, 4,5-dihydro-4-methyl-5-phenyl- 90358-27-3