has parent hydride beta-carotene carotenone astacene 592.355 592.80672 A carotenone that consists of beta,beta-carotene bearing four oxo substituents at positions 2, 2', 4 and 4'. Beilstein:2032712 C40H48O4 CAS:514-76-1 CC(\C=C\C=C(C)\C=C\C1=C(C)C(=O)C(=O)CC1(C)C)=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)C(=O)C(=O)CC1(C)C CHEBI:35327 InChI=1S/C40H48O4/c1-27(17-13-19-29(3)21-23-33-31(5)37(43)35(41)25-39(33,7)8)15-11-12-16-28(2)18-14-20-30(4)22-24-34-32(6)38(44)36(42)26-40(34,9)10/h11-24H,25-26H2,1-10H3/b12-11+,17-13+,18-14+,23-21+,24-22+,27-15+,28-16+,29-19+,30-20+ PMID:15823009 PMID:16747424 PMID:19621574 PMID:20267555 PMID:22417348 RASZIXQTZOARSV-QISQUURKSA-N Reaxys:2032712 astacin beta,beta-carotene-3,3',4,4'-tetrone chebi_ontology