英文名称: | 1,1'-(2,2-dimethyltrimethylenedioxydimethylene)bis(4-formyl-pyridiniu dichl | oride, dioxime | bis(4-hydroxyiminomethylpyridinium(1)-methyl)-1,3-propanediol(2,2-dimeth yl)a | ether dichlorid | r 51 | pyridinium,1,1'-(2,2-dimethyltrimethylenedioxydimethylene)bis(4-formyl-,dichloride, dioxime |
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