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What is the molecular formula of the molecule identified by 2-(5-amino-2,4-difluorophenyl)-1-chloro-5,6,7,8-tetrahydropyrazolo[1,2-a]pyridazin-3-one;1-chloro-2-[2,4-difluoro-5-(methylamino)phenyl]-5,6,7,8-tetrahydropyrazolo[1,2-a]pyridazin-3-one;1-chloro-2-[5-(dimethylamino)-2,4-difluorophenyl]-5,6,7,8-tetrahydropyrazolo[1,2-a]pyridazin-3-one ?
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C42H42Cl3F6N9O3
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