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Date: 2-12-2019
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Date: 11-7-2019
1568
Date: 17-9-2020
2223
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For dialdehydes the location numbers for both carbonyls are omitted because the aldehyde functional groups are expected to occupy the ends of the parent chain. The ending –dial is added to the end of the parent chain name.
Example :
For diketones both carbonyls require a location number. The ending -dione or -dial is added to the end of the parent chain.
Example
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دراسة تحدد أفضل 4 وجبات صحية.. وأخطرها
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العتبة العباسية تستعدّ لتكريم عددٍ من الطالبات المرتديات للعباءة الزينبية في جامعات كركوك
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