xanthophyll 3,4,3',4'-Tetrahydrospirilloxanthin 600.491 600.95640 C42H64O2 CHEBI:80154 COC(C)(C)CCC\C(C)=C\C=C\C(C)=C\C=C\C(C)=C\C=C\C=C(C)\C=C\C=C(C)\C=C\C=C(/C)CCCC(C)(C)OC InChI=1S/C42H64O2/c1-35(23-15-25-37(3)27-17-29-39(5)31-19-33-41(7,8)43-11)21-13-14-22-36(2)24-16-26-38(4)28-18-30-40(6)32-20-34-42(9,10)44-12/h13-18,21-30H,19-20,31-34H2,1-12H3/b14-13+,23-15+,24-16+,27-17+,28-18+,35-21+,36-22+,37-25+,38-26+,39-29+,40-30+ KEGG:C15888 KNApSAcK:C00022898 LCTIOHZQWXQPIB-VYCPWLLESA-N chebi_ontology