4286 Cylindrospermopsin Cylindrospermopsin (abbreviated to CYN, or CYL) is a cyanotoxin produced by a variety of freshwater cyanobacteria. CYN is a polycyclic uracil derivative containing guanidino and sulfate groups. It is also zwitterionic, making it highly water soluble. CYN is toxic to liver and kidney tissue and is thought to inhibit protein synthesis and to covalently modify DNA and/or RNA. It is not known whether cylindrospermopsin is a carcinogen, but it appears to have no tumour initiating activity in mice. 143545-90-8 42628600 C15H21N5O7S White powder. No indication of carcinogenicity to humans (not listed by IARC). Cylindrospermopsin (abbreviated to CYN, or CYL) is a cyanotoxin produced by a variety of freshwater cyanobacteria. 2014-08-29T05:55:52Z 2014-12-24T20:26:43Z Cylindrospermopsin C19999 true [H][C@](O)(C1=CC(O)=NC(O)=N1)[C@@]1([H])C[C@@]2([H])C[C@]([H])(OS(O)(=O)=O)[C@]([H])(C)[C@@]3([H])CN=C(N1)N23 C15H21N5O7S InChI=1S/C15H21N5O7S/c1-6-10-5-16-14-17-8(13(22)9-4-12(21)19-15(23)18-9)2-7(20(10)14)3-11(6)27-28(24,25)26/h4,6-8,10-11,13,22H,2-3,5H2,1H3,(H,16,17)(H,24,25,26)(H2,18,19,21,23)/t6-,7+,8-,10-,11+,13-/m1/s1 InChIKey=LHJPHMKIGRLKDR-VDPNAHCISA-N 415.422 415.116168741 Exogenous Solid CHEMBL1722002 26396261