Xanthosine dihydrate

Xanthosine is a nucleoside produced by guanine-auxotrophic bacterial mutants like Bacillus subtilis. Its monophosphate form, XMP, is a key biosynthetic intermediate in purine metabolism, converting inosine monophosphate (IMP) to guanosine monophosphate (GMP) . This makes it a valuable small molecule for studying nucleotide synthesis and microbial genetics in both in vitro and in vivo research.