微囊藻***WR，MicrocystinWR，MC-WR，藻***，WRProductSpecificationIdentity:IdentitydeterminedbyMS.Formula:C54H73N11O12MW:1068.3Purity:≥95%(HPLC)Appearance:Palepowderorfilm.CAS:138234-58-9Source/Host:IsolatedfromMicrocystisaeruginosa.Solubility:SolubleinmethanolorDMSO.LongTermStorage:-20°CHazard:HIGHLYIRRITANT.MAYBECARCINOGENIC.TOXIC.Background/TechnicalInformation:Microcystinsareagroupofcyclicheptapeptidehepatotoxinsproducedbyanumberofcyanobacterialgenera.Themostnotableofwhich,andnamesake,isthewidespreadgenusMicrocystis.Structurally,allmicrocystinsc***istofthegeneralizedstructurecyclo(-D-Ala1-X2-D-MeAsp3-Y4-Adda5-D-Glu6-Mdha7-).XandYarevariableL-aminoacids,D-MeAspisD-erythro-ß-methylasparticacidandMdhaisN-methyldehydroalanine.AddaisthecyanobacteriauniqueC20ß-aminoacid3-amino-9-methoxy-2,6,8-trimethyl-10-phenyl-deca-4,6-dienoicacid.Substituti***ofthevariableL-aminoacidsatpositi***2and4giverisetoatleast21knownprimarymicrocystinanalogsandalterati***intheotherc***tituentaminoacidsresultinmorethan90reportedmycrocystinstodate.)