Wiktionary
cobamamide
n. (context biochemistry English) One of the components of vitamin B12
Wikipedia
Cobamamide
Cobamamide (AdoCbl), which is also known as adenosylcobalamin and dibencozide, is, along with methylcobalamin (MeCbl), one of the active forms of vitamin B. As a nutritional supplement, it is available in tabletted form, but unlike cyanocobalamin, methylcobalamin, and hydroxocobalamin, it is not available in injectable form.
An enzyme that uses adenosylcobalamin as a cofactor is methylmalonyl-CoA mutase (MCM).