pyrrolopurine alkaloid carbamate ester guanidines saxitoxin 299.134 299.28650 An alkaloid isolated from the marine dinoflagellates and cyanobacteria that causes paralytic shellfish poisoning. C10H17N7O4 CAS:35523-89-8 CHEBI:34970 HMDB:HMDB0029368 InChI=1S/C10H17N7O4/c11-6-15-5-4(3-21-8(13)18)14-7(12)17-2-1-9(19,20)10(5,17)16-6/h4-5,19-20H,1-3H2,(H2,12,14)(H2,13,18)(H3,11,15,16)/t4-,5-,10-/m0/s1 KEGG:C13757 NC(=O)OC[C@@H]1NC(=N)N2CCC(O)(O)[C@@]22NC(=N)N[C@@H]12 PMID:22628533 PMID:23966031 PMID:24184516 PMID:24460188 RPQXVSUAYFXFJA-HGRQIUPRSA-N Reaxys:47858 Wikipedia:Saxitoxin [(3aS,4R,10aS)-10,10-dihydroxy-2,6-diiminooctahydro-1H,8H-pyrrolo[1,2-c]purin-4-yl]methyl carbamate chebi_ontology ketone hydrate