Synonyms: Calcium folinate, Calcium (2S)-2-[[4-[[[(6RS)-2-amino-5-formyl-4-oxo1,4,5,6,7,8-hexahydropteridin-6-yl]methyl]amino]benzoyl]amino]pentanedioate, Calcium 5-formyltetrahydrofolate, Calcium L-folinate, Calcium folinate, Calcium leucovorin, Folidan, Folinic acid calcium salt, Lederfoline, Leucovorin calcium, Leucovorin calcium salt, NSC 3590, Rescuvolin, Wellcovorin