4191 Virol B Virol B is a polyene phytotoxin. It is a homolog of Cicutoxin and is found in Water hemlock, Cicuta virosa. Water hemlock is well-known as a toxic plant responsible for lethal poisonings in humans as well as animals, causing tonic and clonic convulsions and respiratory paralysis. Cicutoxin and Vitrol B belong to the class of C17-polyacetylenes bearing a long π-bond conjugation system, a terminal hydroxyl, and an allylic hydroxyl in its structure. It is a GABA receptor antagonist. 10753985 C17H26O2 White powder. No indication of carcinogenicity to humans (not listed by IARC). Virol B is a polyene phytotoxin. It is a homolog of Cicutoxin and is found in Water hemlock, Cicuta virosa. Cicutoxin and Vitrol B belong to the class of C17-polyacetylenes bearing a long җ-bond conjugation system, a terminal hydroxyl, and an allylic hydroxyl in its structure. 2014-08-29T05:30:38Z 2026-05-21T01:31:42Z C19994 true [H]\C(CCCCCCC)=C(/[H])[C@]([H])(O)C#CC#CCCCO C17H26O2 InChI=1S/C17H26O2/c1-2-3-4-5-6-8-11-14-17(19)15-12-9-7-10-13-16-18/h11,14,17-19H,2-6,8,10,13,16H2,1H3/b14-11-/t17-/m0/s1 OZXJUTMPBYVTKB-IFCKCIONSA-N 262.3871 262.193280076 Exogenous Solid CHEMBL435827 8929308 CHEM003097 NS00094451 40.46 83.1488 33.6546254351412 12 2 2 13.594019941699791 -2.162998234379139 0 0 4.74 -4.42 9.88e-03 g/l