79580-28-2

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79580-28-2 Structure

Identification	Back Directory
[Name] BREVETOXIN B
[CAS] 79580-28-2
[Synonyms] gb2 t4-7 btx-b GBTX-2 PBTX-2 gb2toxin t4-7toxin toxint-34 BREVETOXIN 2 BREVETOXIN B brevetoxint34 BREVETOXIN PBTX-2 Gb 2 (gymnodinium) Brevetoxinpbtx-2-20c BREVETOXIN PBTX-2, PTYCHODISCUS BREVIS 1H-Pyrano(2'',3'':5',6')pyrano(2',3':5,6)pyrano(3,2-B)pyrano(2'''''',3'''''':5''''',6''''')pyrano(2''''',3''''':5'''',6'''')pyrano(2'''',3'''':6''',7''')oxepino(2''',3''':6'',7'')oxepino(2'',3'':5',6')pyrano(2',3':5,6)pyrano(2,3-G)oxocin-3-propanal, 2,3,4A,5,5A,6A,9,9A,10A,11,11A,12A,13,14,14A,15A,16,16A,18,20A,21A,22,22A,23A,24,25,25A,26A,27,27A,28A,29,29A,30A-tetratriacontahydro-1-hydroxy-9A,13,20,21A,25A,26A,30A-heptamethyl-alpha-methylene-18-oxo-, (1S-(1alpha,3alpha,4aalpha,5aalpha,6aalpha,9aalpha,10aalpha, 11aalpha,12aalpha,13beta,14aalpha,15aalpha,16aalpha,20abeta, 21abeta,22abeta,23abet
[Molecular Formula] C50H70O14
[MDL Number] MFCD00214092
[MOL File] 79580-28-2.mol
[Molecular Weight] 895.08

Chemical Properties	Back Directory
[Melting point ] 270(Disassembly)
[density ] 1.188±0.06 g/cm3(Predicted)
[storage temp. ] −20°C
[solubility ] Ethyl Acetate: soluble
[form ] A film
[pka] 13.72±0.70(Predicted)
[color ] tan to white
[optical activity] +154.022 (CHCl3)
[Water Solubility ] ethyl acetate: soluble methanol: soluble water: soluble

Hazard Information	Back Directory
[Description] Brevetoxin B is a polyketide neurotoxin produced by Karenia species and other dinoflagellates. It binds to site 5 on the alpha subunit of voltage-gated sodium channels (IC₅₀ = 15 nM) on neurons at the neuromuscular junction, causing the channel to open irreversibly at potentials more negative than normal, discharging action potentials repetitively. Brevetoxin B is ichthyotoxic at nanomolar concentrations and is responsible for an illness described as neurotoxic shellfish poisoning.
[Definition] ChEBI: Brevetoxin B is a ciguatoxin.

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