The name/synonym for ligand LYC (curated from ChEBI, PubChem, and PDB databases):

1LYCOPENE
2PSI,PSI-CAROTENE
3ALL-TRANS-LYCOPENE
4(6E,8E,10E,12E,14E,16E,18E,20E,22E,24E,26E)-2,6,10,14,19,23,27,31-OCTAMETHYLDOTRIACONTA-2,6,8,10,12,14,16,18,20,22,24,26,30-TRIDECAENE