can't read?
S-Adenosyl-L-methionine (ademetionine) is a common co-substrate involved in methyl group transfers. Ademetionine is a common co-substrate involved in methyl group transfers.
A 1480 (OTTO) S-Adenosyl-L-methionine, 99% Cas 29908-03-0 - used as a common co-substrate involved in methyl group transfers.