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

1CTP
2CYTIDINE 5'-(TETRAHYDROGEN TRIPHOSPHATE)
35'-CTP
4H4CTP
5CYTIDINE TRIPHOSPHATE
6CYTIDINE 5'-TRIPHOSPHATE
7CYTIDINE-5'-TRIPHOSPHATE