1) Organic disulfide 
Lipoamide is a trivial name for 6,8-dithiooctanoic amide. It is 6,8-dithiooctanoic acid`s functional form where the carboxyl group is attached to protein (or any other amine) by an amide linkage (containing -NH2). Sometimes lipoamide is used to refer to protein bound lipoic acid, but this can be misleading as this is technically incorrect. Lipoyl....
<biochemistry> The functional form of lipoic acid in which the carboxyl group is attached to protein by an amide linkage to a lysine amino group. ... (18 Nov 1997) ... 
The functional form of lipoic acid in which the carboxyl group is attached to protein by an amide linkage to a lysine amino group.
Type: Term Pronunciation: lip′ō-am′īd, -am′id See: lipoic acid