(6S)-5-Formyl-5,6,7,8-tetrahydrofolic acid (6S)-Folinic acid (6S)-Leucovorin (S)-Leucovorin 121451-09-0 68538-85-2 L-Folinic acid L-Glutamic acid, N-(4-((((6S)-2-amino-5-formyl-1,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)methyl)amino)benzoyl)- L-Glutamic acid, N-(4-(((2-amino-5-formyl-1,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)methyl)amino)benzoyl)-, (S)- LFP 754