发明授权
US3520883A 2,3-dihydro-4h-1,2,4-benzothiadiazine-4-ol 1,1-dioxides 失效
2,3-二氢-4H-1,2,4-苯并二氮杂-4-OL 1,1-DIOXIDES

2,3-dihydro-4h-1,2,4-benzothiadiazine-4-ol 1,1-dioxides
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