SMILES: C1=NC(=C2C(=N1)N(C=N2)[C@H]3[C@@H]([C@@H]([C@H](O3)C[S+](CC[C@@H](C(=O)[O-])[NH3+])CC(=O)[O-])O)O)N
Description: The molecule is a sulfonium betaine obtained by deprotonation of the carboxy groups and protonation of the amino group of S-adenosyl-S-carboxymethyl-L-homocysteine. Major microspecies at pH 7.3 It is a L-alpha-amino acid zwitterion and a sulfonium betaine. It is a conjugate base of a S-adenosyl-S-carboxymethyl-L-homocysteine.