Synonyms: Glutamicacid,N-[p-[[(2-amino-5-formyl-5,6,7,8-tetrahydro-4-hydroxy-6-pteridinyl)methyl]amino]benzoyl]-,calcium salt, pentahydrate, L- (8CI);L-Glutamic acid,N-[4-[[(2-amino-5-formyl-1,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]-,calcium salt (1:1), pentahydrate (9CI);Folinic acid, calcium salt pentahydrate;L-Glutamic acid,N-[4-[[(2-amino-5-formyl-3,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]-,calcium salt, hydrate (1:1:5);