4195 Hemibrevetoxin B Hemibrevetoxin B belongs to a structurally unique family of marine neurotoxins isolated from the dinoflagellate Gymnodinium breve. 122271-91-4 6442821 C28H42O7 White powder. No indication of carcinogenicity to humans (not listed by IARC). Hemibrevetoxin B belongs to a structurally unique family of marine neurotoxins isolated from the dinoflagellate Gymnodinium breve. 2014-08-29T05:40:27Z 2026-05-21T00:20:24Z C20016 true [H]\C(CC[C@@]1([H])O[C@@]2([H])CC[C@@]3(C)O[C@@]4([H])[C@@]([H])(O)C[C@@]([H])(CC(=C)C=O)O[C@]4([H])C[C@]3([H])O[C@]2([H])CC[C@]1(C)O)=C(/[H])C=C C28H42O7 InChI=1S/C28H42O7/c1-5-6-7-8-9-24-27(3,31)12-10-21-22(33-24)11-13-28(4)25(34-21)16-23-26(35-28)20(30)15-19(32-23)14-18(2)17-29/h5-7,17,19-26,30-31H,1-2,8-16H2,3-4H3/b7-6-/t19-,20+,21-,22+,23-,24-,25+,26+,27+,28-/m1/s1 HINDCSLBLBWIIV-HWFPZXRZSA-N 490.6289 490.293053698 Exogenous Solid 4946882 CHEM003101 DTXSID70880093 NS00075607 94.45000000000002 133.40959999999993 55.41083752198597 7 7 2 13.73996985519597 -3.2136923388149254 0 4 3.50 -4.28 2.57e-02 g/l