4194 Brevetoxin C Brevetoxin C (BTX-C), a polyether marine toxin from dinoflagellate Karnia breve(Ptychodiscus brevis, ir Gymnodinium breve in earlier literature), one of the toxins responsible for 'red tide' massive fish kills. This compound froms a ladder-like-arranged multiple ring structure with an unusual aclein side-chian on one of the terminal rings. Together with ohter congeners, they are known to disrupt neurotransimission by opening sodiium channels. 82983-92-4 56928154 C49H69ClO14 White powder. No indication of carcinogenicity to humans (not listed by IARC). Brevetoxin C (BTX-C), a polyether marine toxin from dinoflagellate Karnia breve(Ptychodiscus brevis, ir Gymnodinium breve in earlier literature), one of the toxins responsible for 'red tide' massive fish kills. 2014-08-29T05:40:09Z 2026-05-21T00:18:44Z Brevetoxin C20015 true [H]\C1=C([H])\[C@@]2([H])O[C@@]3([H])C[C@@]4([H])OC([H])(CC(=O)CCl)C[C@]([H])(O)[C@]4(C)OC3([H])CC2([H])O[C@]2([H])C[C@]3(C)O[C@]4(C)CCC5([H])OC6([H])C[C@]7(C)OC8([H])C(C)=CC(=O)O[C@@]8([H])C[C@@]7([H])O[C@@]6([H])C[C@@]([H])(C)[C@@]5([H])O[C@@]4([H])C[C@@]3([H])O[C@@]2(C)C1 C49H69ClO14 InChI=1S/C49H69ClO14/c1-24-13-30-35(21-47(5)37(57-30)19-34-44(63-47)25(2)14-42(53)59-34)56-29-10-12-46(4)38(60-43(24)29)20-39-48(6,64-46)22-41-45(3,62-39)11-8-9-28-31(58-41)17-33-32(55-28)18-40-49(7,61-33)36(52)16-27(54-40)15-26(51)23-50/h8-9,14,24,27-41,43-44,52H,10-13,15-23H2,1-7H3/b9-8-/t24-,27?,28-,29?,30+,31?,32+,33?,34+,35?,36+,37-,38+,39-,40-,41-,43-,44?,45+,46-,47+,48+,49+/m1/s1 LLWZTLRNRYPFBO-BLKWTHGMSA-N 917.517 916.437584623 Exogenous Solid 30790891 CHEM003100 DTXSID40879999 NS00075436 155.89999999999998 230.2133999999999 99.21276030908913 3 13 1 13.835580508872713 -3.3076614495063765 0 11 3.62 -5.45 3.26e-03 g/l